NL70945C
Expired / Lapsed
NL
⏱️ 0.0 years remaining
Metal cover for mine support
Assignee: Hubert Joseph Wetzels
•
Filing: 1947-10-28
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Granted: 1952-10-15
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Expires: 1967-10-28
Abstract
No abstract record available.
Inventors
- 👤 Hubert Joseph Wetzels
Bibliographic Details
Application Number
—
Jurisdiction
NL
Data Source
google_patents
Last Synchronized
2026-11-08 19:09
CPC Classifications
E; E21; E21D; E21D17/00; E21D17/02; E21D17/08; E21D17/086
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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