Printing and office machinery – Typewriter or calculator – Combined
Patent
1983-08-10
1985-06-04
Zarfas, Louis S.
Printing and office machinery
Typewriter or calculator
Combined
D18 7, D18 13
Patent
active
D02791048
REFERENCES:
patent: D234466 (1975-03-01), Satake
patent: D255246 (1980-06-01), Yoshioka et al.
patent: D257990 (1981-01-01), Hirata et al.
patent: D264599 (1982-05-01), Sakamoto et al.
Sharp Corporation
Zarfas Louis S,.
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