Patent DE2000760A1 successfully refreshed from Google Patents.
DE2000760A1
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Closing device for a drill pipe clamp
Assignee: Individual
•
Filing: 1970-01-09
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Granted: —
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Expires: 1990-01-09
Abstract
No abstract record available.
Inventors
- 👤 Oskar Birnbaum
- 👤 Otto Lehmann
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-06 14:18
CPC Classifications
E; E21; E21B; E21B19/00; E21B7/00; E21B7/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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