CA952618A
Expired / Lapsed
CA
⏱️ 0.0 years remaining
Data signalling apparatus for well drilling tools
Assignee: Schlumberger Canada Ltd
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Filing: 1971-07-30
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Granted: 1974-08-06
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Expires: 1991-07-30
Abstract
No abstract record available.
Inventors
- 👤 Jackson R. Claycomb
Bibliographic Details
Application Number
—
Jurisdiction
CA
Data Source
google_patents
Last Synchronized
2026-11-08 16:08
CPC Classifications
E; E21; E21B; E21B47/00; E21B47/12; E21B47/14; E21B47/18; E21B47/20; E21B47/24
Claims Analysis
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References Cited (Backward Citations)
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