Keypad

Details Keypad Keypad

1992-11-06

1994-06-14

Burke, Wallace R.

Recording, communication, or information retrieval equipment

Video or audio transmission, recording or playback equipment

Telephone equipment

Patent

active

D03478351

REFERENCES:
patent: D286047 (1986-10-01), Roots et al.
patent: D327881 (1992-07-01), McFarlane
patent: D329848 (1992-09-01), Mizusugi et al.
patent: D337106 (1993-07-01), Jasinski
patent: D341360 (1993-11-01), Yamazaki

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