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Patent:US1298599


Patent:US 1298599
Title:Adding-machine
Date:25.03.1919
Place:Baltimore
Country:USA
Person:William W. Talbot
Company:Hoyt P. Simmons
Internal Links:
Keywords:
Link to the patent office:
(without guarantee)
 US1298599 (espacenet),  US1298599 (uspto)


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