Invention Grant
- Patent Title: Inner tube
- Patent Title (中): 内管
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Application No.: US36859020Application Date: 1920-03-25
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Publication No.: US1451304APublication Date: 1923-04-10
- Inventor: PIERSON MITCHELL MARY
- Applicant: PIERSON MITCHELL MARY
- Assignee: Mitchell Mary Pierson
- Current Assignee: Mitchell Mary Pierson
- Priority: US36859020 1920-03-25
- Main IPC: B29D23/24
- IPC: B29D23/24 ; B60C5/08
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