Printing and office machinery – Typewriter or calculator – Combined
Patent
1982-10-04
1984-11-27
Zarfas, Louis S.
Printing and office machinery
Typewriter or calculator
Combined
D 9436, D18 7
Patent
active
D02765357
REFERENCES:
patent: D258966 (1981-04-01), McCrae
patent: 4044242 (1977-08-01), Laesser
Conover Richard C.
Zarfas Louis S,.
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