DE693793C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Process and device for the removal of powerful rock layers
Assignee: Mitteldeutsche Stahlwerke AG
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Filing: 1936-04-09
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Granted: 1940-07-19
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Expires: 1956-04-09
Abstract
No abstract record available.
Inventors
- 👤 Dipl-Ing Georg Muenstermann
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-02 02:15
CPC Classifications
E; E21; E21C; E21C47/00; E21C47/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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