Printing and office machinery – Typewriter or calculator – Element or attachment
Patent
1987-03-24
1989-08-15
Largen, James R.
Printing and office machinery
Typewriter or calculator
Element or attachment
Patent
active
D03028275
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patent: 4448556 (1984-05-01), Trezise et al.
patent: 4582439 (1986-04-01), LaSpesa
Kabushiki Kaisha Toshiba
Largen James R.
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