Printing and office machinery – Typewriter or calculator
Patent
1976-05-25
1979-01-23
Zarfas, Louis S.
Printing and office machinery
Typewriter or calculator
D1801
Patent
active
D02509148
REFERENCES:
patent: D221357 (1971-08-01), Penney
patent: D237216 (1975-10-01), Bellini
Ing. C. Olivetti & C. S.p.A.
Schuyler, Jr. William E.
Zarfas Louis S,.
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