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Patent:US1792569


Patent:US 1792569
Title:Differential mechanism for cash registers and calculating machines
Date:17.02.1931
Place:
Country:USA
Person:Breitling, Ernst (P)
Company:Krupp (P) AG
Internal Links:
Keywords:
Link to the patent office:
(without guarantee)
 US1792569 (espacenet),  US1792569 (uspto)


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Aus der Patentschrift US1792569