Invention Grant
- Patent Title: Conditioned well drilling fluid
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Application No.: US25259339Application Date: 1939-01-24
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Publication No.: US2271696APublication Date: 1942-02-03
- Inventor: JONES PHILIP H
- Applicant: UNION OIL CO
- Assignee: Union Oil Co
- Current Assignee: Union Oil Co
- Priority: US25259339 1939-01-24; US5988936 1936-01-20
- Main IPC: C09K8/22
- IPC: C09K8/22
Information query
