Invention Grant
- Patent Title: Method for applying concrete to tunnels
- Patent Title (中): 隧道施工混凝土的方法
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Application No.: US13684726Application Date: 1926-09-21
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Publication No.: US1778099APublication Date: 1930-10-14
- Inventor: WEBB WADE F
- Applicant: WEBB WADE F
- Assignee: Wade F Webb
- Current Assignee: Wade F Webb
- Priority: US13684726 1926-09-21
- Main IPC: E21D11/10
- IPC: E21D11/10
Public/Granted literature
- US08852522B1 Plasma de-activation apparatus and method Public/Granted day:2014-10-07
Information query
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