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FR534844A
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FR534844A - - Google Patents
Assignee: —
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Filing: —
•
Granted: 1922-04-03
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Expires: 1939-04-03
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-26 02:00
CPC Classifications
E; E21; E21B; E21B21/00; E21B21/16; E21B21/01; E21B21/015; B; B23; B23Q; B23Q11/00; B23Q11/0042; B23Q11/0046; B23Q11/0053
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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