Patent Assignment Details
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Reel/Frame: | 004421/0252 | |
| Pages: | 1 |
| | Recorded: | 05/17/1985 | | |
Conveyance: | ASSIGNMENT OF ASSIGNORS INTEREST. |
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Total properties:
1
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Patent #:
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Issue Dt:
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02/10/1987
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Application #:
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06735430
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Filing Dt:
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05/17/1985
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Title:
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LIGHT PEN INPUT SYSTEM HAVING TWO-THRESHOLD LIGHT SENSING
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Correspondence name and address
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RONALD L. DRUMHELLER
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IBM PAT. OPERS., P. O. BOX 218
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YORKTOWN HEIGHTS, NY 10598
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