Assignee
CASTRO HORACIO
3 granted patents·41 citations·filing 1983–1986
Technology mixH04M3
Top patents by PatentIndex Score
3 records- 0175US4625079AMethod and apparatus for activating through phone telecommand an announcer-recorder, and for selectively activating through the sending of codes consisting of signals at least another automatic call attention phone deviceCASTRO HORACIO·Filed 1983·Granted Nov 25, 1986·27 cites·10 claims
- 0245US4771450AMethod and apparatus for converting rotary signals to audiofrequency signalsCASTRO HORACIO·Filed 1986·Granted Sep 13, 1988·10 cites·16 claims
- 0334US4618742AMethod and apparatus for decoding audiofrequency information sent through rotary dialingCASTRO HORACIO·Filed 1983·Granted Oct 21, 1986·4 cites·9 claims
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