Printing and office machinery – Typewriter or calculator – Element or attachment
Patent
1986-12-15
1990-04-24
Largen, James R.
Printing and office machinery
Typewriter or calculator
Element or attachment
Patent
active
D03074366
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patent: 4132485 (1979-01-01), Hess
Endo Aiko
Hasegawa Koh
Canon Kabushiki Kaisha
Largen James R.
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