Assignee
TBS INT INC
US·3 granted patents·141 citations·filing 1981–1984
Top patents by PatentIndex Score
3 records- 0190US4599493AMulti-line telephone control systemTBS INT INC·Filed 1984·Granted Jul 8, 1986·77 cites·6 claims
- 0283US4405833ATelephone call progress tone and answer identification circuitTBS INT INC·Filed 1981·Granted Sep 20, 1983·60 cites·36 claims
- 0342US4340913ATri-level digital recordingTBS INT INC·Filed 1981·Granted Jul 20, 1982·4 cites·8 claims
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