Patent Assignment Details
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Reel/Frame: | 005965/0911 | |
| Pages: | 9 |
| | Recorded: | 12/20/1991 | | |
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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02/16/1993
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Application #:
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07811189
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Filing Dt:
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12/20/1991
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Title:
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VERIFICATION OF SUBSCRIBER LINES PRIOR TO CUTOVER TO A NEW SWITCHING SYSTEM
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Assignee
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550 MADISON AVENUE NEW YORK, NY 10022-3201 |
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Correspondence name and address
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AT&T BELL LABORATORIES
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600 MOUNTAIN AVENUE (ROOM 3C-512)
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P.O. BOX 636
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MURRAY HILL, NJ 07974-0636
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ATTN: CHARLES L. WARREN
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