Invention Grant
- Patent Title: Center pin structure
- Patent Title (中): 中心针结构
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Application No.: US66424833Application Date: 1933-04-03
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Publication No.: US2096004APublication Date: 1937-10-19
- Inventor: PIRON EMIL H
- Applicant: TRANSIT RES CORP
- Assignee: Transit Res Corp
- Current Assignee: Transit Res Corp
- Priority: US66424833 1933-04-03
- Main IPC: B61F5/18
- IPC: B61F5/18
Information query
