Combined trackball and mouse

Details Combined trackball and mouse Combined trackball and mouse

1994-02-14

1995-09-05

Tung, Melanie H.

Recording, communication, or information retrieval equipment

Video or audio transmission, recording or playback equipment

Telephone equipment

Patent

active

D03619915

REFERENCES:
patent: D289306 (1987-04-01), Burnstein et al.
patent: D291318 (1987-08-01), Kim
patent: D333818 (1993-03-01), Yang
patent: D335658 (1993-05-01), Barr
patent: D342241 (1993-12-01), Ashmun et al.
patent: D350344 (1994-09-01), Nakada
patent: 4862165 (1989-08-01), Gart
patent: 4952919 (1990-08-01), Nippoldt
patent: 5045842 (1991-09-01), Galvin

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