Ribbon cartridge

Printing and office machinery – Typewriter or calculator – Element or attachment

Patent

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Details

D14 11, D1899

Patent

active

D02598841

REFERENCES:
patent: D221903 (1971-09-01), De Vries
patent: D231800 (1974-06-01), Castro
patent: D245116 (1977-07-01), Trezise
patent: D245726 (1977-09-01), Sottsass
patent: D250613 (1978-12-01), Goodman et al.
patent: 3354776 (1967-11-01), Smitzer et al.
patent: 3964595 (1976-06-01), Edstrom

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