FR869739A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Improvement applicable to the various machines whose main mechanism consists of a helical screw rotating inside a chamber
Assignee: Jean Beaucarnot
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Filing: 1941-02-05
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Granted: 1942-02-13
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Expires: 1961-02-05
Abstract
No abstract record available.
Inventors
- 👤 Jean Beaucarnot
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-25 13:43
CPC Classifications
B; B65; B65G; B65G33/00; B65G33/08
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