Portable data terminal

Details Portable data terminal Portable data terminal

1991-05-22

1993-02-02

Burke, Wallace R.

Recording, communication, or information retrieval equipment

Video or audio transmission, recording or playback equipment

Telephone equipment

Patent

active

D03329453

REFERENCES:
patent: D279688 (1985-07-01), Kitai et al.
patent: D285177 (1987-04-01), Sawada
patent: D285805 (1986-09-01), Yubisui et al.
patent: D290845 (1987-07-01), Yubisui et al.
patent: D292710 (1987-11-01), Woods, Jr.
patent: D298945 (1991-12-01), Kagayama et al.
patent: D310213 (1990-08-01), Tsukada et al.
patent: D316706 (1991-05-01), Imamura et al.
patent: D317759 (1991-06-01), Azima
patent: D323157 (1992-01-01), Miaje
IBM TDB to Burger et al., "Paper Holder Feed and Hinge Assembly for Hand Held Terminal", Jul. 1990, vol. 33, No. 2.
Wall Street Journal Advertisement, May 9, 1989, "Casio B.O.S.S. Calculator".
PC Week Magazine article, pp. 5 and 69, May 8, 1989, "Tandy Will Enforce Patent on Laptop Screens", by Steven Burke.

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