FR1272244A
Expired / Lapsed
FR
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Support device for a mine roof
Assignee: Dowty Mining Equipment Ltd
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Filing: 1960-10-25
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Granted: 1961-09-22
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Expires: 1980-10-25
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-02 22:27
CPC Classifications
E; E21; E21D; E21D23/00; E21D23/0052
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