FR1260080A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Sealed roller drill bit
Assignee: MATERIEL DE FORAGE SOC DE FAB
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Filing: 1960-03-22
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Granted: 1961-05-05
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Expires: 1980-03-22
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-27 03:21
CPC Classifications
E; E21; E21B; E21B10/00; E21B10/08; E21B10/22; E21B10/25; E21B10/24; E21B10/246
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