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Patent:US2588127


Patent:US 2588127
Title:Interlock for calculating machine control keys
Date:04.03.1952
Place:Skokie, IL und Chicago
Country:USA
Person:Jalmer M. Laiho
Company:Felt und Tarrant (P) Mfg. Comp.
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Link to the patent office:
(without guarantee)
 US2588127 (espacenet),  US2588127 (uspto)


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