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Patent:US2489724


Patent:US 2489724
Title:Recording and computing machine
Date:29.11.1949
Place:Ilion, NY
Country:USA
Person:Edwin O. Roggenstein Emil F. Thierfelder
Company:Remington Rand (P)
Internal Links:
Keywords:
Link to the patent office:
(without guarantee)
 US2489724 (espacenet),  US2489724 (uspto)


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