Portable typewriting machine

Details Portable typewriting machine Portable typewriting machine

1979-08-16

1981-06-30

Zarfas, Louis S.

Printing and office machinery

Typewriter or calculator

D1801

Patent

active

D02597268

REFERENCES:
patent: D148985 (1948-03-01), Grover et al.
patent: D178633 (1956-09-01), Braginetz
patent: D230087 (1974-01-01), Fusco et al.
patent: D235778 (1975-07-01), Fossella

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