AT91457B
Expired / Lapsed
AT
⏱️ 0.0 years remaining
Method for securing loose rock layers in mining.
Assignee: August Wolfsholz Presszementba
•
Filing: 1921-01-08
•
Granted: 1923-02-26
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Expires: 1941-01-08
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
AT
Data Source
google_patents
Last Synchronized
2026-10-24 23:34
CPC Classifications
E; E21; E21D; E21D20/00; E21D20/02; E21D20/021
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