Keyboard

Details Keyboard Keyboard

1991-12-10

1994-03-01

Lucas, Susan J.

Recording, communication, or information retrieval equipment

Video or audio transmission, recording or playback equipment

Telephone equipment

Patent

active

D03447243

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patent: D311524 (1990-10-01), Lazere et al.
patent: D330199 (1992-10-01), Mendel et al.
patent: D335660 (1993-05-01), Busch

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