Invention Grant
- Patent Title: Pinwheel
- Patent Title (中): 风车
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Application No.: US30746028Application Date: 1928-09-21
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Publication No.: US1769784APublication Date: 1930-07-01
- Inventor: HOPPE ROBERT A
- Applicant: BASTIAN BROS COMPANY
- Assignee: Bastian Bros Company
- Current Assignee: Bastian Bros Company
- Priority: US30746028 1928-09-21
- Main IPC: A63H33/40
- IPC: A63H33/40
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