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Patent:US1395121


Patent:US 1395121
Title:Recording machine
Date:25.10.1921
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)
 US1395121 (espacenet),  US1395121 (uspto)


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