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Patent:US1378047


Patent:US 1378047
Title:Typewriting and calculating machine
Date:17.05.1921
Place:
Country:USA
Person:Martin Olaf O
Company:Remington Accounting Machine C
Internal Links:
Keywords:
Link to the patent office:
(without guarantee)
 US1378047 (espacenet),  US1378047 (uspto)


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Aus der Patentschrift US1378047