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Patent:US1287559


Patent:US 1287559
Title:Combined type writing and computing machine
Date:10.12.1918
Place:New York
Country:USA
Person:Wright, Walter (P)
Company:Underwood (P) Computing Machine Comp.
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Keywords:
Link to the patent office:
(without guarantee)
 US1287559 (espacenet),  US1287559 (uspto)


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