Keyboard

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

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D03476294

REFERENCES:
patent: D277001 (1985-01-01), McGarvey et al.
patent: D289761 (1987-05-01), Matulock et al.
patent: D290969 (1987-07-01), Sutou et al.
patent: D307748 (1990-05-01), Cardona et al.
patent: D313400 (1991-01-01), Quinn et al.
patent: D313402 (1991-01-01), Esslinger
patent: D316542 (1991-04-01), Vogeley
patent: 4906117 (1990-03-01), Birdwell
patent: 4948281 (1990-08-01), Werner
patent: 5001307 (1991-03-01), Blaser
PC Magazine-Dec. 12, 1989 p. 50-Keyboard.

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