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FR1508961A
Expired / Lapsed
FR
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Further training in very hard rock drilling tools
Assignee: Societe Nationale des Petroles dAquitaine SA
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Filing: 1966-03-31
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Granted: 1968-01-12
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Expires: 1986-03-31
Abstract
No abstract record available.
Inventors
- 👤 Jean Raynal
- 👤 Bruno Renard
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-05 18:18
CPC Classifications
E; E21; E21B; E21B10/00; E21B10/46
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Total Claims: 0
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References Cited (Backward Citations)
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