Assignee
FLOYD BELL ASS
US·4 granted patents·43 citations·filing 1981–1986
Top patents by PatentIndex Score
4 records- 0168US4664764ACathodic protection of structuresFLOYD BELL ASS·Filed 1986·Granted May 12, 1987·22 cites·27 claims
- 0259US4658419ATelephone ringer circuitFLOYD BELL ASS·Filed 1981·Granted Apr 14, 1987·12 cites·20 claims
- 0329US4684927AAnnunciator circuit for elevator systemsFLOYD BELL ASS·Filed 1986·Granted Aug 4, 1987·5 cites·18 claims
- 0429US4653093AFrequency selective ringer circuitFLOYD BELL ASS·Filed 1985·Granted Mar 24, 1987·4 cites·20 claims
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