Printing and office machinery – Typewriter or calculator – Combined
Patent
1977-03-14
1979-08-21
Zarfas, Louis S.
Printing and office machinery
Typewriter or calculator
Combined
D1801
Patent
active
D02526891
REFERENCES:
patent: D206467 (1966-12-01), Noyes
patent: D228192 (1973-08-01), Kovacs
patent: D231635 (1974-05-01), Penney
patent: D238451 (1976-01-01), Bittner et al.
patent: D245341 (1977-08-01), Kitai
Andersen David C.
Arjani Farouk
Johnson Richard E.
Kramer Thomas J.
Pharmer David D.
Artec International Corporation
Rosenblum Jerald E.
Zarfas Louis S,.
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