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Patent:US2857098


Patent:US 2857098
Title:Register clear symbol printing mechanism for calculating machine
Date:21.10.1958
Place:
Country:USA
Person:Chall, Harold (P)
Company:Friden (P)
Internal Links:
Keywords:
Link to the patent office:
(without guarantee)
 US2857098 (espacenet),  US2857098 (uspto)