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Patent:US1293219


Patent:US 1293219
Title:Combined type-writing and computing machine
Date:04.02.1919
Place:Brooklyn und Ilion, NY
Country:USA
Person:William Garfield Sheldon
Company:Remington (P) Typewriter Comp.
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Keywords:
Link to the patent office:
(without guarantee)
 US1293219 (espacenet),  US1293219 (uspto)


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