Payphone base

Details Payphone base Payphone base

1992-02-18

1993-09-14

Douglas, Alan P.

Recording, communication, or information retrieval equipment

Video or audio transmission, recording or playback equipment

Telephone equipment

D14151

Patent

active

D03393410

REFERENCES:
patent: D246584 (1977-12-01), Bhat et al.
patent: D289638 (1987-05-01), Kasprzycki
patent: D302272 (1989-07-01), Sharp, Jr.
patent: D307008 (1990-04-01), Shaanan et al.
patent: D307418 (1990-04-01), Aschauer et al.
patent: D316833 (1991-05-01), Miozzo
patent: D319826 (1991-09-01), Hung
patent: D320983 (1991-10-01), Grinyer
patent: D320987 (1991-10-01), Grinyer
patent: D321511 (1991-11-01), Swarthout et al.

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