Invention Grant
- Patent Title: Apparatus for testing torsion springs
- Patent Title (中): 用于测试扭力弹簧的装置
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Application No.: US40677854Application Date: 1954-01-28
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Publication No.: US2799162APublication Date: 1957-07-16
- Inventor: CARLSON HAROLD C R
- Applicant: CARLSON HAROLD C R
- Assignee: Harold C R Carlson
- Current Assignee: Harold C R Carlson
- Priority: US40677854 1954-01-28
- Main IPC: G01N3/00
- IPC: G01N3/00 ; G04D7/02
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