Patent FR490199A successfully refreshed from Google Patents.
FR490199A
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FR
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Electric engraving point
Assignee: R I ELECTRICAL INSTR Co
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Filing: 1918-05-22
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Granted: 1919-04-05
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Expires: 1938-05-22
Abstract
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Inventors
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Bibliographic Details
Application Number
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Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-29 15:10
CPC Classifications
B; B23; B23H; B23H9/00; B23H9/06
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