Dual telephone

Details Dual telephone Dual telephone

1993-06-25

1994-11-22

Dwyer, James L.

Telephonic communications

Terminal

Housing or housing component

379433, 379428, 379454, H04M 100

Patent

active

053675703

ABSTRACT:
A dual phone arrangement allowing two persons to simultaneously listen and talk during the same telephone conversation which includes a pair of telephones connected back-to-back each having a receiver and a transmitter; electrical wires connecting each telephone to each other and to an external telephone line and dialing instrument; and a tubular member interposed between said pair of telephones to provide support for the same on an external stand which may be a shoulder support or a free-standing unit.

REFERENCES:
patent: 1903565 (1933-04-01), Vartanian
patent: 2874229 (1959-02-01), Lilley
patent: 3141072 (1964-07-01), Neilson
patent: 4107477 (1978-08-01), Morrison
patent: 5134649 (1992-07-01), Gutzmer

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