CA476310A
Expired / Lapsed
CA
⏱️ 0.0 years remaining
Drilling muds
Assignee: Richfield Oil Corp
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Filing: —
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Granted: 1951-08-21
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Expires: 1968-08-21
Abstract
No abstract record available.
Inventors
- 👤 Kay Hewes Charles
- 👤 Eugene Porter Lawrence
- 👤 Clark Zweifel Henry
- 👤 George Harris Charles
Bibliographic Details
Application Number
—
Jurisdiction
CA
Data Source
google_patents
Last Synchronized
2026-10-28 15:48
CPC Classifications
—
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References Cited (Backward Citations)
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