Modular public telephone

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

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D03198278

REFERENCES:
patent: D219222 (1970-11-01), Payne
patent: D287125 (1986-12-01), Savnik
patent: D300135 (1989-03-01), Alvarez et al.
patent: D301036 (1989-05-01), Yamazaki et al.
patent: D302273 (1989-07-01), Adachi et al.
patent: D304725 (1989-11-01), Rose
patent: D305653 (1990-01-01), Rose
patent: D306022 (1990-02-01), Farina
patent: D308677 (1990-06-01), Tamura
patent: 4815123 (1980-03-01), McGough
patent: 4974257 (1990-11-01), Ibanez et al.
Teleconnect Magazine, Mar. 1988, at p. 135; Landis & Gyr "Phonocard".

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