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Patent:US1787489


Patent:US 1787489
Title:Carriage equipment for accounting machines
Date:06.01.1931
Place:Detroit
Country:USA
Person:Robert L. Muller
Company:Burroughs (P) Adding Machine Co.
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Keywords:
Link to the patent office:
(without guarantee)
 US1787489 (espacenet),  US1787489 (uspto)


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