Printing and office machinery – Typewriter or calculator – Element or attachment
Patent
1981-08-31
1984-02-07
Zarfas, Louis S.
Printing and office machinery
Typewriter or calculator
Element or attachment
D1899
Patent
active
D02725452
REFERENCES:
patent: D219589 (1970-12-01), Miller
patent: 1801669 (1931-04-01), Hintz et al.
Gilbert Milton E.
Ross Gary E.
Wright Line Inc.
Zarfas Louis S,.
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