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Patent:US1378887


Patent:US 1378887
Title:Paper-feed alarm for adding-machines
Date:24.05.1921
Place:
Country:USA
Person:Martin Jr Thomas Pugh
Company:
Internal Links:
Keywords:
Link to the patent office:
(without guarantee)
 US1378887 (espacenet),  US1378887 (uspto)


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Aus der Patentschrift US1378887