Invention Grant
- Patent Title: Method and apparatus for soil gas analysis
- Patent Title (中): 土壤气体分析方法和装置
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Application No.: US25337539Application Date: 1939-01-28
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Publication No.: US2284147APublication Date: 1942-05-26
- Inventor: HERRICK HENRY N
- Applicant: STANDARD OIL CO CALIFORNIA
- Assignee: Standard Oil Co California
- Current Assignee: Standard Oil Co California
- Priority: US25337539 1939-01-28
- Main IPC: G01N1/22
- IPC: G01N1/22
Information query
