Typewriter

Details Typewriter Typewriter

1978-03-24

1979-12-25

Zarfas, Louis S.

Printing and office machinery

Typewriter or calculator

D1801

Patent

active

D02537745

REFERENCES:
patent: D193917 (1962-10-01), Sundberg
patent: D216840 (1970-03-01), Joseph
patent: D230088 (1974-01-01), Bellini
patent: D237109 (1975-10-01), Genaro

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