FR601295A
Expired / Lapsed
FR
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Method for increasing the resistance of hollow metal objects
Assignee: Frederick Charles Langenberg
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Filing: 1925-07-24
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Granted: 1926-02-26
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Expires: 1945-07-24
Abstract
No abstract record available.
Inventors
- 👤 Frederick Charles Langenberg
- 👤 Tracy Campbell Dickson
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-07 23:51
CPC Classifications
B; B23; B23P; B23P9/00; C; C21; C21D; C21D7/00; C21D7/02; C21D7/10; C21D7/12
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