Invention Grant
- Patent Title: Bitumen of high softening point
- Patent Title (中): 沥青软化点高
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Application No.: US34735340Application Date: 1940-07-25
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Publication No.: US2305440APublication Date: 1942-12-15
- Inventor: NOEL HENRY M
- Applicant: STANDARD OIL DEV CO
- Assignee: Standard Oil Development Co
- Current Assignee: Standard Oil Development Co
- Priority: US34735340 1940-07-25
- Main IPC: C10C3/06
- IPC: C10C3/06
Information query
