Copyholder for attachment to a computer keyboard

Details Copyholder for attachment to a computer keyboard Copyholder for attachment to a computer keyboard

1992-03-20

1993-09-07

Holtje, Nelson C.

Recording, communication, or information retrieval equipment

Video or audio transmission, recording or playback equipment

Telephone equipment

D19 90, D19 91, D19 89

Patent

active

D03391175

REFERENCES:
patent: D158815 (1950-05-01), Taylor
patent: 229453 (1880-06-01), Patterson
patent: D251792 (1979-05-01), Moody et al.
patent: D262547 (1982-01-01), Bryan
patent: D276244 (1984-11-01), Abseck
patent: D319076 (1991-08-01), Smith
patent: 2530702 (1950-11-01), Johnson
patent: 3748023 (1973-07-01), Nelson
patent: 3983651 (1976-10-01), Dickey
patent: 4136472 (1979-01-01), Delvo
patent: 4317565 (1982-03-01), Swette

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