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Patent:US2812131


Patent:US 2812131
Title:Combined paper feed and function control mechanism
Date:05.11.1957
Place:Zürich
Country:USA
Person:Hermann Gruener
Company:Underwood (P) Computing Machine Com.
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Link to the patent office:
(without guarantee)
 US2812131 (espacenet),  US2812131 (uspto)


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