Invention Grant
- Patent Title: Quadricycle
- Patent Title (中): 四轮车
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Application No.: US61907645Application Date: 1945-09-28
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Publication No.: US2439755APublication Date: 1948-04-13
- Inventor: SCHWINN FRANK W
- Applicant: SCHWINN FRANK W
- Assignee: Frank W Schwinn
- Current Assignee: Frank W Schwinn
- Priority: US61907645 1945-09-28
- Main IPC: B62H1/12
- IPC: B62H1/12
Information query
