
      OPEN CASCADE releases and makes publicly available the source code of the software Open CASCADE
         Technology to the free software development community under the terms and conditions of this
         license.
      It is not the purpose of this license to induce you to infringe any patents or other property right
         claims or to contest validity of any such claims; this license has the sole purpose of protecting the
         integrity of the free software distribution system, which is implemented by public license practices.
         Many people have made generous contributions to the wide range of software distributed through that
         system in reliance on consistent application of that system; it is up to the author/donor to decide if
         he or she is willing to distribute software through any other system and a licensee cannot impose that
         choice.
      Please read this license carefully and completely before downloading this software. By downloading,
         using, modifying, distributing and sublicensing this software, you indicate your acceptance to be
         bound by the terms and conditions of this license. If you do not want to accept or cannot accept for
         any reasons the terms and conditions of this license, please do not download or use in any manner this
         software.
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          Definitions
          Unless there is something in the subject matter or in the context inconsistent therewith, the
             capitalized terms used in this License shall have the following meaning.
            "Applicable Intellectual Property Rights" means (a) with respect to the Initial
             Developer, any rights under patents or patents applications or other intellectual property
             rights that are now or hereafter acquired, owned by or assigned to the Initial Developer and
             that cover subject matter contained in the Original Code, but only to the extent necessary to
             use, reproduce, modify, distribute or sublicense the Original Code without infringement; and
             (b) with respect to You or any Contributor, any rights under patents or patents applications
             or other intellectual property rights that are now or hereafter acquired, owned by or assigned
             to You or to such Contributor and that cover subject matter contained in Your Modifications or
             in such Contributor's Modifications, taken alone or in combination with Original
             Code.
            "Contributor" means each individual or legal entity that creates or contributes to the
             creation of any Modification, including the Initial Developer.
            "Derivative Program": means a new program combining the Software or portions thereof
             with other source code not governed by the terms of this License.
            "Initial Developer": means OPEN CASCADE, with main offices at 1, place des Frères
             Montgolfier, 78280, Guyancourt, France.
            "Modifications": mean any addition to, deletion from or change to the substance or the
             structure of the Software. When source code of the Software is released as a series of files,
             a Modification is: (a) any addition to, deletion from or change to the contents of a file
             containing the Software or (b) any new file or other representation of computer program
             statements that contains any part of the Software. By way of example, Modifications include
             any debug of, or improvement to, the Original Code or any of its components or portions as
             well as its next versions or releases thereof.
            "Original Code": means (a) the source code of the software Open CASCADE Technology
             originally made available by the Initial Developer under this License, including the source
             code of any updates or upgrades of the Original Code and (b) the object code compiled from
             such source code and originally made available by Initial Developer under this License.
            "Software": means the Original Code, the Modifications, the combination of Original
             Code and any Modifications or any respective portions thereof.
            "You" or "Your": means an individual or a legal entity exercising rights
             under this License
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          Acceptance of license
            By using, reproducing, modifying, distributing or sublicensing the Software or any portion
                 thereof, You expressly indicate Your acceptance of the terms and conditions of this
                 License and undertake to act in accordance with all the provisions of this License
                 applicable to You.
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          Scope and purpose
            This License applies to the Software and You may not use, reproduce, modify, distribute,
                 sublicense or circulate the Software, or any portion thereof, except as expressly
                 provided under this License. Any attempt to otherwise use, reproduce, modify,
                 distribute or sublicense the Software is void and will automatically terminate Your
                 rights under this License.
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          Contributor license
            Subject to the terms and conditions of this License, the Initial Developer and each of the
                 Contributors hereby grant You a world-wide, royalty-free, irrevocable and
                 non-exclusive license under the Applicable Intellectual Property Rights they own or
                 control, to use, reproduce, modify, distribute and sublicense the Software provided
                 that:

          You reproduce in all copies of the Software the copyright and other proprietary notices and
             disclaimers of the Initial Developer as they appear in the Original Code and attached hereto
             as Schedule "A" and any other notices or disclaimers attached to the Software and
             keep intact all notices in the Original Code that refer to this License and to the absence of
             any warranty;
            You include a copy of this License with every copy of the Software You distribute;
            If you distribute or sublicense the Software (as modified by You or on Your behalf as the case
             may be), You cause such Software to be licensed as a whole, at no charge, to all third
             parties, under the terms and conditions of the License, making in particular available to all
             third parties the source code of the Software;
            You document all Your Modifications, indicate the date of each such Modification, designate the
             version of the Software You used, prominently include a file carrying such information with
             respect to the Modifications and duplicate the copyright and other proprietary notices and
             disclaimers attached hereto as Schedule "B" or any other notices or disclaimers
             attached to the Software with your Modifications.
            For greater certainty, it is expressly understood that You may freely create Derivative Programs
             (without any obligation to publish such Derivative Program) and distribute same as a single
             product. In such case, You must ensure that all the requirements of this License are fulfilled
             for the Software or any portion thereof.
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          Your license
            You hereby grant all Contributors and anyone who becomes a party under this License a
                 world-wide, non-exclusive, royalty-free and irrevocable license under the Applicable
                 Intellectual Property Rights owned or controlled by You, to use, reproduce, modify,
                 distribute and sublicense all Your Modifications under the terms and conditions of
                 this License.
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          Software subject to license
            Your Modifications shall be governed by the terms and conditions of this License. You are
                 not authorized to impose any other terms or conditions than those prevailing under
                 this License when You distribute and/or sublicense the Software, save and except as
                 permitted under Section 7 hereof.
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          Additional terms
            You may choose to offer, on a non-exclusive basis, and to charge a fee for any warranty,
                 support, maintenance, liability obligations or other rights consistent with the scope
                 of this License with respect to the Software (the "Additional Terms") to the
                 recipients of the Software. However, You may do so only on Your own behalf and on Your
                 sole and exclusive responsibility. You must obtain the recipient's agreement that
                 any such Additional Terms are offered by You alone, and You hereby agree to indemnify,
                 defend and hold the Initial Developer and any Contributor harmless for any liability
                 incurred by or claims asserted against the Initial Developer or any Contributors with
                 respect to any such Additional Terms.
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          Disclaimer of warranty
            The Software is provided under this License on an "as is" basis, without warranty
                 of any kind, including without limitation, warranties that the Software is free of
                 defects, merchantable, fit for a particular purpose or non-infringing. The entire risk
                 as to the quality and performance of the Software is with You.
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          Liability
            Under no circumstances shall You, the Initial Developer or any Contributor be liable to any
                 person for any direct or indirect damages of any kind including, without limitation,
                 damages for loss of goodwill, loss of data, work stoppage, computer failure or
                 malfunction or any and all other commercial damages or losses resulting from or
                 relating to this License or indirectly to the use of the Software.
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          Trademark
            This License does not grant any rights to use the trademarks, trade names and domain names
                 "MATRA", "EADS Matra Datavision", "CAS.CADE", "Open
                 CASCADE", "opencascade.com" and "opencascade.org" or any
                 other trademarks, trade names or domain names used or owned by the Initial Developer.
        ENiRCV`Y+/Z_
          Copyright
            The Initial Developer retains all rights, title and interest in and to the Original Code.
                 You may not remove the copyright © notice which appears when You download the
                 Software.
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          Term
            This License is granted to You for a term equal to the remaining period of protection
                 covered by the intellectual property rights applicable to the Original Code.
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          Termination
            In case of termination, as provided in Section 3 above, You agree to immediately stop any
                 further use, reproduction, modification, distribution and sublicensing of the Software
                 and to destroy all copies of the Software that are in Your possession or control. All
                 sublicenses of the Software which have been properly granted prior to termination
                 shall survive any termination of this License. In addition, Sections 5, 8 to 11, 13.2
                 and 15.2 of this License, in reason of their nature, shall survive the termination of
                 this License for a period of fifteen (15) years.
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          Versions of the license
            The Initial Developer may publish new versions of this License from time to time. Once
                 Original Code has been published under a particular version of this License, You may
                 choose to continue to use it under the terms and conditions of that version or use the
                 Original Code under the terms of any subsequent version of this License published by
                 the Initial Developer.
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          Miscellaneous
        
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            Relationship of the Parties This License will not be construed as creating an agency,
               partnership, joint venture or any other form of legal association between You and the
               Initial Developer, and You will not represent to the contrary, whether expressly, by
               implication or otherwise.
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            Independent Development Nothing in this License will impair the Initial Developer's
               right to acquire, license, develop, have others develop for it, market or distribute
               technology or products that perform the same or similar functions as, or otherwise compete
               with, Modifications, Derivative Programs, technology or products that You may develop,
               produce, market or distribute.
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            Severability If for any reason a court of competent jurisdiction finds any provision of this
               License, or portion thereof, to be unenforceable, that provision of the License will be
               enforced to the maximum extent permissible so as to effect the economic benefits and
               intent of the parties, and the remainder of this License will continue in full force and
               extent.

      