Assignee
INVENTIVE IND INC
2 granted patents·39 citations·filing 1976–1976
Technology mixH04M2
Top patents by PatentIndex Score
2 records- 0178US4028502AApparatus for adapting multi-line telephone instrument for use by the blindINVENTIVE IND INC·Filed 1976·Granted Jun 7, 1977·26 cites·15 claims
- 0263US4080517AAudio sensory apparatus and method for monitoring indicator lamp status of multi-line telephone instrumentINVENTIVE IND INC·Filed 1976·Granted Mar 21, 1978·13 cites·30 claims
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