Printing and office machinery – Typewriter or calculator – Element or attachment
Patent
1979-08-13
1982-05-11
Word, A. Hugo
Printing and office machinery
Typewriter or calculator
Element or attachment
D13 12, D1801
Patent
active
D02643480
REFERENCES:
patent: D249511 (1978-09-01), Olson
patent: D254436 (1980-03-01), Bakal
patent: 4074350 (1978-02-01), Rock et al.
patent: 4119839 (1978-10-01), Beckmann et al.
patent: 4160886 (1979-07-01), Wright et al.
Mahon Gordon
Short Ben E.
Turk George H.
Electro Mark Corporation
Word A. Hugo
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