Invention Grant
- Patent Title: Method of and apparatus for making rubber tubes
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Application No.: US48939630Application Date: 1930-10-17
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Publication No.: US2022230APublication Date: 1935-11-26
- Inventor: CAVANAGH JOHN F
- Applicant: WILLIAM WALLACE POTTER
- Assignee: William Wallace Potter
- Current Assignee: William Wallace Potter
- Priority: US48939630 1930-10-17
- Main IPC: B29D23/24
- IPC: B29D23/24
Information query
