Assignee

AUSTRALIAN & OVERSEAS TELECOM

AU·2 granted patents·198 citations·filing 1989–1991

Technology mixH04M2 H04Q1 H04W1

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2 records

0176US5272747AMobile pay telephone systemAUSTRALIAN & OVERSEAS TELECOM·Filed 1989·Granted Dec 21, 1993·167 cites·28 claims
0253US5519770AEnhanced telephony apparatus and systemAUSTRALIAN & OVERSEAS TELECOM·Filed 1991·Granted May 21, 1996·31 cites·8 claims

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