Patent FR768798A successfully refreshed from Google Patents.
FR768798A
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Method and apparatus for sinking and casing wells in soft ground
Assignee: Jean Guerin
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Filing: 1934-02-17
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Granted: 1934-08-13
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Expires: 1954-02-17
Abstract
No abstract record available.
Inventors
- 👤 Jean Guerin
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-01 05:08
CPC Classifications
E; E21; E21D; E21D1/00; E21D1/03; E21D1/06
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Total Claims: 0
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References Cited (Backward Citations)
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