Invention Grant
- Patent Title: Circumferential pipe cutting or welding machine
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Application No.: US67860933Application Date: 1933-07-01
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Publication No.: US1981341APublication Date: 1934-11-20
- Inventor: ANDERSON JAMES L
- Applicant: AIR REDUCTION
- Assignee: Air Reduction
- Current Assignee: Air Reduction
- Priority: US67860933 1933-07-01
- Main IPC: B23K7/00
- IPC: B23K7/00
Information query
