Patent Assignment Abstract of Title
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Total Assignments:
1
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Patent #:
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Issue Dt:
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02/07/1989
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Application #:
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07092427
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Filing Dt:
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09/03/1987
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Inventor:
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KATSUYOSHI SAKAI
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Title:
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ELECTRONIC BLACKBOARD SYSTEM
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Assignment:
1
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ASSIGNMENT OF ASSIGNORS INTEREST.
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WOLF, GREENFIELD & SACKS, P.C. |
201 DEVONSHIRE STREET |
BOSTON, MASSACHUSETTS 02110-1490 |
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05/01/2024 10:24 AM
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