Ribbon cartridge

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

Patent

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Details

D1801

Patent

active

D02680343

REFERENCES:
patent: D232125 (1974-07-01), Lee
patent: D244965 (1977-07-01), Trezise et al.
patent: D262414 (1981-12-01), Long et al.

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