Invention Grant
- Patent Title: Spring die cushion
- Patent Title (中): 弹簧模具垫
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Application No.: US66850623Application Date: 1923-10-15
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Publication No.: US1544594APublication Date: 1925-07-07
- Inventor: NILSON KARL V , JOHN NELSON
- Applicant: MARQUETTE TOOL & MFG CO
- Assignee: Marquette Tool & Mfg Co
- Current Assignee: Marquette Tool & Mfg Co
- Priority: US66850623 1923-10-15
- Main IPC: B21D24/06
- IPC: B21D24/06
Information query
