Invention Grant
- Patent Title: Method and machine for making spiral seamed pipe
- Patent Title (中): 制作螺旋缝管的方法和机器
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Application No.: US35135264Application Date: 1964-03-12
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Publication No.: US3263321APublication Date: 1966-08-02
- Inventor: LOMBARDI JACK P
- Applicant: LOMBARDI JACK P
- Assignee: Jack P Lombardi
- Current Assignee: Jack P Lombardi
- Priority: US35135264 1964-03-12
- Main IPC: B21C37/12
- IPC: B21C37/12
Information query
