Printing and office machinery – Typewriter or calculator
Patent
1977-03-15
1979-06-19
Zarfas, Louis S.
Printing and office machinery
Typewriter or calculator
D1801
Patent
active
D02521717
REFERENCES:
patent: D190694 (1961-06-01), Baughman
patent: D207978 (1967-06-01), Noyes
patent: D213233 (1969-01-01), Auboeck
Dobson Park Industrial Products Ltd.
Kirschstein David B.
Zarfas Louis S,.
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