Telephone base

Details Telephone base Telephone base

1992-04-03

1993-08-31

Douglas, Alan P.

Recording, communication, or information retrieval equipment

Video or audio transmission, recording or playback equipment

Telephone equipment

Patent

active

D03388875

REFERENCES:
patent: D239838 (1976-05-01), Crimmins
patent: D280505 (1985-09-01), Genaro et al.
patent: D289638 (1987-05-01), Kasprzycki
patent: D289644 (1987-05-01), Aldrich
patent: D303115 (1989-08-01), Hart et al.
patent: D303965 (1989-10-01), Helstab
patent: D306583 (1990-03-01), Krolopp et al.
patent: D315557 (1991-03-01), Grewe et al.
patent: D320987 (1991-10-01), Grinyer
Chicago Tribune, Jun. 3, 1991; Section 4, p. 10.

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