Disc telephone

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

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D14143

Patent

active

D03672743

REFERENCES:
patent: D284660 (1986-07-01), Montague et al.
patent: D292283 (1987-10-01), Matsuda et al.
patent: D300027 (1989-02-01), Brunish
patent: D300317 (1989-03-01), Yoshiharu
patent: D311397 (1990-10-01), Cheng
patent: D321187 (1991-10-01), Yang
patent: D325582 (1992-04-01), Emmons et al.
patent: D340714 (1993-10-01), Hoffman
patent: D346598 (1994-05-01), McCay et al.
patent: D347219 (1994-05-01), McGreevy
B. A. Pargh Catalog 1985 Spring/Summer, p. 282, Comdial Telephones.

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