Keyboard

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

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D02932431

REFERENCES:
patent: D214169 (1969-05-01), Bowman
patent: D219589 (1970-12-01), Miller
patent: D223252 (1972-04-01), Jacobson
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patent: D275009 (1984-08-01), Shibata
patent: D275755 (1984-10-01), Cottrill et al.
patent: D276230 (1984-11-01), Akiyama
patent: D276914 (1984-12-01), Moriconi
patent: D277003 (1985-01-01), Cridland
patent: D277284 (1985-01-01), Horne
patent: D278063 (1985-03-01), Chamberlain
patent: D278709 (1985-05-01), Xanthopoulos
IBM Keyboard-(B)-1.

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