Text telephone

Details Text telephone Text telephone

1994-06-10

1995-12-05

Asch, Jeffrey

Recording, communication, or information retrieval equipment

Video or audio transmission, recording or playback equipment

Telephone equipment

D14101, D14150

Patent

active

D03648656

REFERENCES:
patent: D273110 (1984-03-01), Genaro et al.
patent: D275857 (1984-10-01), Moraine
patent: D278435 (1985-04-01), Hikawa
patent: D283421 (1986-04-01), Brier
patent: D296894 (1988-07-01), Chen
patent: D306727 (1990-03-01), Fritzsche
patent: D312457 (1990-11-01), Inatomi
patent: D322785 (1991-12-01), Wu
patent: 3515814 (1970-06-01), Morgan

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