Portable telephone communication device for the hearing impaired

Details Portable telephone communication device for the hearing impaired Portable telephone communication device for the hearing impaired

1977-05-02

1981-05-19

Stellar, George G.

179 2DP, H04M 121, H04M 1100

Patent

active

042687217

ABSTRACT:
A portable telephone communications device for the hearing impaired can be carried in the pocket of the user and attaches directly to the telephone handset without intrusion. It includes a keyboard and a readout which enables the user to transmit data by means of the keyboard and receive data which is presented on either an electronic display or a printer or both.

REFERENCES:
patent: 2501955 (1950-03-01), McWane
patent: 3130270 (1964-04-01), Sanders
patent: 3976840 (1976-08-01), Cleveland et al.
patent: 4007443 (1977-02-01), Bromberg et al.
patent: 4012599 (1977-03-01), Meyer
patent: 4028661 (1977-06-01), Mortimer

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