Coin telephone

Details Coin telephone Coin telephone

1988-01-25

1990-01-02

Fay, Jr., Horace B.

Recording, communication, or information retrieval equipment

Video or audio transmission, recording or playback equipment

Telephone equipment

379440

Patent

active

D03053326

REFERENCES:
patent: D185799 (1959-04-01), Dreyfuss et al.
patent: D219222 (1970-11-01), Payne
patent: D219922 (1971-02-01), Furusawa et al.
patent: D233611 (1974-11-01), Kramer et al.
patent: D252331 (1979-07-01), Baase et al.
patent: D265558 (1982-07-01), Fox et al.
patent: D286286 (1986-10-01), Skigen et al.
patent: D287125 (1986-12-01), Savnik
patent: D287966 (1987-01-01), Albertson
patent: D290841 (1987-07-01), Cochran
patent: D293320 (1987-12-01), Ng
patent: D293440 (1987-12-01), Britz
Telephony, Sep. 28, 1987: Landis & Gyr Coin Phone.

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