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Patent:US2707832


Patent:US 2707832
Title:Carpenter’s self-calculator
Date:10.05.1955
Place:
Country:USA
Person:Chapman Thomas, Billie Swindall
Company:
Internal Links:
Keywords:
Link to the patent office:
(without guarantee)
 US2707832 (espacenet),  US2707832 (uspto)


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Aus der Patentschrift US2707832