FR525622A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Improvements to springs especially intended for percussion tools
Assignee: W H Dorman & Co Ltd
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Filing: 1920-10-06
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Granted: 1921-09-24
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Expires: 1940-10-06
Abstract
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Inventors
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Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-30 05:51
CPC Classifications
B; B21; B21J; B21J15/00; B21J15/10; B21J15/16; B21J15/20
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