Assignee

CALLELE DAVID

CA·2 granted patents·165 citations·filing 1990–1991

Technology mixH04M2 H04Q2 H04N1

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2 records

0182US5206900AAutomated attendantCALLELE DAVID·Filed 1991·Granted Apr 27, 1993·95 cites·14 claims
0275US5117452ATelephone interface for a computer for receiving and transmitting information during the silent interval between ringingCALLELE DAVID·Filed 1990·Granted May 26, 1992·70 cites·50 claims

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