Assignee

ADVANCED CELLULAR TELCOM CORP

US·1 granted patent·70 citations·filing 1990–1990

Technology mixH04M1

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0174US5157719AAutomatic area code dialing apparatus and methods particularly adapted for cellular or other types of telephone systemsADVANCED CELLULAR TELCOM CORP·Filed 1990·Granted Oct 20, 1992·70 cites·67 claims

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