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Patent:US1299646


Patent:US 1299646
Title:Combined type-writing and computing machine
Date:08.04.1919
Place:Brooklyn und New York
Country:USA
Person:Alfred J. Wood
Company:Underwood (P) Computing Machine Comp.
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Keywords:
Link to the patent office:
(without guarantee)
 US1299646 (espacenet),  US1299646 (uspto)


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