FR837391A
Expired / Lapsed
FR
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Method and apparatus for reducing wall thickness and diameter of tubes
Assignee: Francois Rosenauer
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Filing: 1938-04-30
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Granted: 1939-02-08
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Expires: 1958-04-30
Abstract
No abstract record available.
Inventors
- 👤 Francois Rosenauer
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-08 20:48
CPC Classifications
B; B21; B21J; B21J7/00; B21J7/02; B21J7/14; B21J7/16
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