Invention Grant
- Patent Title: Helical-seam tube-making installation
- Patent Title (中): 螺旋管制管安装
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Application No.: US22477062Application Date: 1962-09-19
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Publication No.: US3210980APublication Date: 1965-10-12
- Inventor: SENGEL KURT E
- Applicant: DRIAM S A
- Assignee: Driam S A
- Current Assignee: Driam S A
- Priority: DED0037088 1961-09-21
- Main IPC: B21C37/12
- IPC: B21C37/12
Information query
