Assignee
CHESTEL INC
4 granted patents·59 citations·filing 1974–1977
Top patents by PatentIndex Score
4 records- 0175US3937892AElectronic time-division-multiplexed pabx telephone systemCHESTEL INC·Filed 1974·Granted Feb 10, 1976·26 cites·27 claims
- 0267US4016370ADigital tone decoderCHESTEL INC·Filed 1975·Granted Apr 5, 1977·14 cites·23 claims
- 0360US4087643ATime division multiplexed PABX communication switching systemCHESTEL INC·Filed 1977·Granted May 2, 1978·12 cites·18 claims
- 0439US4086440ATelephone set with loop current interruption timing controlCHESTEL INC·Filed 1977·Granted Apr 25, 1978·7 cites·12 claims
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