Telephone test set

Details Telephone test set Telephone test set

1996-02-12

1996-12-03

Asch, Jeffrey

Recording, communication, or information retrieval equipment

Video or audio transmission, recording or playback equipment

Telephone equipment

D10 78, D14240

Patent

active

D03761452

REFERENCES:
patent: D258061 (1981-01-01), Foreman
patent: D280504 (1985-09-01), Walker, Jr.
patent: D295411 (1988-04-01), Cho et al.
patent: D338890 (1993-08-01), Nogas et al.
patent: 2420638 (1947-05-01), Hellmann
patent: 4153822 (1979-05-01), Ueda et al.
patent: 5332322 (1994-07-01), Gambaro
patent: 5513259 (1996-04-01), Pettit
Telephony May 11, 1987, p. 97, Harris Telephone Test Set in upper left corner.

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