Printing and office machinery – Typewriter or calculator – Element or attachment
Patent
1988-08-12
1989-08-29
Largen, James R.
Printing and office machinery
Typewriter or calculator
Element or attachment
Patent
active
D03031225
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patent: 4511271 (1985-04-01), Oberto
Ing. C. Olivetti & C. S.p.A.
Largen James R.
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