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Patent:US1428787


Patent:US 1428787
Title:Adding machine
Date:12.09.1922
Place:Norwood, OH und Cincinnati
Country:USA
Person:Landsiedel, Harry (P)
Company:Dalton (P) Adding Machine Comp.
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Keywords:
Link to the patent office:
(without guarantee)
 US1428787 (espacenet),  US1428787 (uspto)


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