Invention Grant
- Patent Title: Die for preparing pipe ends
- Patent Title (中): 用于制备管端的模具
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Application No.: US70507734Application Date: 1934-01-03
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Publication No.: US1996095APublication Date: 1935-04-02
- Inventor: BIRMINGHAM THOMAS F
- Applicant: SUPERHEATER CO LTD
- Assignee: Superheater Co Ltd
- Current Assignee: Superheater Co Ltd
- Priority: US70507734 1934-01-03; US67042233 1933-05-11
- Main IPC: B21C37/28
- IPC: B21C37/28
Information query
