Assignee
SOUTHWESTERN BELL TELEPHONE
US·2 granted patents·71 citations·filing 1985–1985
Top patents by PatentIndex Score
2 records- 0174US4685127ASystem for converting a No. 5 crossbar telephone switching central office to a conforming equal access central officeSOUTHWESTERN BELL TELEPHONE·Filed 1985·Granted Aug 4, 1987·53 cites·7 claims
- 0244US4690491ABuilding data transmission systemSOUTHWESTERN BELL TELEPHONE·Filed 1985·Granted Sep 1, 1987·18 cites·19 claims
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