Patent DE817286C successfully refreshed from Google Patents.
DE817286C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Method and device for introducing steel supports, especially heavy supports, in mining operations
Assignee: Individual
•
Filing: 1948-10-02
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Granted: 1951-10-15
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Expires: 1968-10-02
Abstract
No abstract record available.
Inventors
- 👤 Friedrich Rueter
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-03 13:20
CPC Classifications
E; E21; E21D; E21D17/00; E21D17/02; E21D17/0213; E21D15/00; E21D15/50; E21D15/52; E21D15/526; E21D15/58
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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