Printing and office machinery – Typewriter or calculator – Element or attachment
Patent
1981-05-26
1984-02-07
Zarfas, Louis S.
Printing and office machinery
Typewriter or calculator
Element or attachment
D1899
Patent
active
D02725444
REFERENCES:
patent: D245116 (1977-07-01), Tresize
patent: D247325 (1978-02-01), Tresize
patent: D250613 (1978-12-01), Goodman et al.
patent: D261277 (1981-10-01), Hashimoto et al.
patent: 4034935 (1977-07-01), Plaza et al.
Wordex
Zarfas Louis S,.
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