Public coin telephone

Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment

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379437, 379144

Patent

active

D03064433

REFERENCES:
patent: D219222 (1970-11-01), Payne
patent: D219922 (1971-02-01), Furusawa et al.
patent: D233351 (1974-10-01), Kramer et al.
patent: D233611 (1974-11-01), Kramer et al.
patent: D260769 (1981-09-01), Thomas
patent: 4763352 (1988-08-01), Goff
patent: 4837814 (1989-06-01), Yoshino et al.
Telephony, Sep. 28, 1987; at p. 128, Landis & Gyr Coin Phone, single slot coin phone.

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