FR1201150A
Expired / Lapsed
FR
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Support structure for flat and moderately inclined deposits
Assignee: Gelsenkirchener Bergwerks AG
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Filing: 1958-08-06
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Granted: 1959-12-28
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Expires: 1978-08-06
Abstract
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Bibliographic Details
Application Number
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Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-08 01:15
CPC Classifications
E; E21; E21D; E21D23/00; E21D23/0052
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