DE744068C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Two-part sleeve protection for drill rods
Assignee: HARBURGER PHOENIX AG
•
Filing: 1941-12-19
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Granted: 1944-01-08
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Expires: 1961-12-19
Abstract
No abstract record available.
Inventors
- 👤 Dipl-Ing Karl Gros
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-01 01:58
CPC Classifications
E; E21; E21B; E21B17/00; E21B17/10; E21B17/1042; E21B17/105
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1907825A
Cited
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