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Patent:US1296073


Patent:US 1296073
Title:Algebraic total calculating machine
Date:04.03.1919
Place:Chicago
Country:USA
Person:Goldberg, Hyman Eli (P)
Company:Goldberg Calculating Machine (P) Co
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Keywords:
Link to the patent office:
(without guarantee)
 US1296073 (espacenet),  US1296073 (uspto)


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