Invention Grant
- Patent Title: Method of making a pipe coupling
- Patent Title (中): 制造管接头的方法
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Application No.: US14888761Application Date: 1961-10-31
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Publication No.: US3116546APublication Date: 1964-01-07
- Inventor: SMITH JOSEPH B
- Applicant: SMITH JOSEPH B
- Assignee: Joseph B Smith
- Current Assignee: Joseph B Smith
- Priority: US14888761 1961-10-31; US76302958 1958-09-24
- Main IPC: F16L21/04
- IPC: F16L21/04
Public/Granted literature
- US20160076320A1 MODULAR DRILLING FLUID CONTROL SYSTEM Public/Granted day:2016-03-17
Information query
IPC分类:
