FR1129760A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Drilling device for openings or similar works carried out starting from lower galleries
Assignee: Societe Francaise de Construction de Bennes Automatiques BENOTO SA
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Filing: 1955-08-10
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Granted: 1957-01-25
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Expires: 1975-08-10
Abstract
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Inventors
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Bibliographic Details
Application Number
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Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-27 17:20
CPC Classifications
E; E21; E21B; E21B7/00; E21B7/04; E21B10/00; E21B10/02; E21B3/00; E21B3/02; E21B3/025; E21B7/003
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