Printing and office machinery – Typewriter or calculator – Element or attachment
Patent
1978-10-10
1981-02-17
Zarfas, Louis S.
Printing and office machinery
Typewriter or calculator
Element or attachment
D1801
Patent
active
D02582910
REFERENCES:
patent: D234633 (1975-03-01), Dellim
patent: D253354 (1979-11-01), Lenney et al.
patent: 3960259 (1976-06-01), Guerrini et al.
patent: 4188134 (1980-02-01), Garrido
Iida Kaoru
Nakamura Osamu
Burns Robert E.
Kabushiki Kaisha Suwa Seikosha
Zarfas Louis S,.
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