Combination telephone and intercommunications system
First Claim
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1. IN A TELEPHONE SYSTEM, A PAIR OF STATIONS, A PAIR OF DISTINCT AND SEPARATE BIDIRECTIONAL VOICE INTERCOMMUNICATION CHANNELS EXTENDING BETWEEN SAID STATIONS, MEANS FOR INTERCONNECTING SAID STATIONS VIA ONE OF SAID CHANNELS TO PERMIT VOICE COMMUNICATION BETWEEN SAID STATIONS OVER SAID ONE CHANNEL, AND MEANS AT ONE OF SAID STATIONS FOR TRANSFERRING SAID INTERCONNECTION FROM SAID ONE CHANNEL TO THE OTHER
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1 Claim
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1. IN A TELEPHONE SYSTEM, A PAIR OF STATIONS, A PAIR OF DISTINCT AND SEPARATE BIDIRECTIONAL VOICE INTERCOMMUNICATION CHANNELS EXTENDING BETWEEN SAID STATIONS, MEANS FOR INTERCONNECTING SAID STATIONS VIA ONE OF SAID CHANNELS TO PERMIT VOICE COMMUNICATION BETWEEN SAID STATIONS OVER SAID ONE CHANNEL, AND MEANS AT ONE OF SAID STATIONS FOR TRANSFERRING SAID INTERCONNECTION FROM SAID ONE CHANNEL TO THE OTHER
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Current AssigneeRalph Truby
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Original AssigneeRalph Truby
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InventorsTruby, Ralph
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Application NumberUS04/341,176Time in Patent Office1,111 DaysField of SearchUS Class Current379/160CPC Class CodesH04M 11/027 Annunciator systems for hos...
