Printing and office machinery – Typewriter or calculator – Checkwriter
Patent
1982-10-22
1985-02-19
Zarfas, Louis S.
Printing and office machinery
Typewriter or calculator
Checkwriter
Patent
active
D02776804
REFERENCES:
patent: D202585 (1965-10-01), Barbour
patent: D205561 (1966-08-01), Hollerith, Jr. et al.
patent: D232486 (1974-08-01), Dikoff
patent: D236285 (1975-08-01), Jacobson et al.
patent: 3296959 (1967-01-01), Sewell
patent: 3450041 (1969-06-01), Gentry et al.
Cummins Automatic Check Signer Pamphlet, 11/1969, photo on inside front cover.
The Hedman Company
Zarfas Louis S,.
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