Patent Assignment Details
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Reel/Frame: | 005933/0888 | |
| Pages: | 2 |
| | Recorded: | 12/06/1991 | | |
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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12/28/1993
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Application #:
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07744884
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Filing Dt:
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08/14/1991
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Title:
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METHOD FOR TESTING THE LINE CONNECTION BEFORE SWITCHING FROM A TELEPHONE SWITCHING CENTER TO BE PLACED OUT OF SERVICE TO A NEW DIGITAL TELEPHONE SWITCHING CENTER TO BE PLACED INTO SERVICE
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Correspondence name and address
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HILL, VAN SANTEN,
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STEADMAN & SIMPSON
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85TH FL., SEARS TOWER
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CHICAGO, IL 60606
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