Keycap for pointing and typing operations

Details Keycap for pointing and typing operations Keycap for pointing and typing operations

1993-11-15

1995-05-16

Tung, Melanie H.

Recording, communication, or information retrieval equipment

Video or audio transmission, recording or playback equipment

Telephone equipment

Patent

active

D03583821

REFERENCES:
patent: D311727 (1990-10-01), Brandt
patent: D311913 (1990-11-01), Schaum
patent: D319050 (1991-08-01), Korellis et al.
patent: 569196 (1896-10-01), Graham et al.
patent: 1333013 (1920-03-01), De Vignier
patent: 2134845 (1938-11-01), Smith
patent: 4068577 (1987-07-01), Straayer et al.
patent: 5008505 (1991-04-01), Takano et al.
patent: 5040479 (1991-08-01), Thrash
patent: 5283408 (1994-02-01), Chen
IBM Technical Disclosure Bulletin "Smart Key", vol. 28, No. 5, Oct. 1985.

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