Sound insulating cover for typewriter teletype or the like

Details Sound insulating cover for typewriter teletype or the like Sound insulating cover for typewriter teletype or the like

1977-03-21

1979-02-20

Zarfas, Louis S.

Printing and office machinery

Typewriter or calculator

Element or attachment

D14 50, D14 93, D1899

Patent

active

D02511517

REFERENCES:
patent: D83408 (1931-02-01), Mahoney et al.
patent: D129764 (1941-09-01), Lauder et al.
patent: D232003 (1974-07-01), Frick
patent: D234270 (1975-02-01), Frick
patent: 3785452 (1974-01-01), Scott

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