Invention Grant
- Patent Title: Process of making clamping-rings for pipe-couplings.
- Patent Title (中): 制造用于管接头的夹紧环的方法。
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Application No.: US1907357970Application Date: 1907-02-18
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Publication No.: US1060320APublication Date: 1913-04-29
- Inventor: CLARK JAMES
- Applicant: S R DRESSER MFG CO
- Assignee: S R Dresser Mfg Co
- Current Assignee: S R Dresser Mfg Co
- Priority: US1907357970 1907-02-18
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