Invention Grant
- Patent Title: Rheostat switch
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Application No.: US65008423Application Date: 1923-07-07
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Publication No.: US1553262APublication Date: 1925-09-08
- Inventor: PERNA JR JOSEPH
- Applicant: PERNA JR JOSEPH
- Assignee: Jr Joseph Perna
- Current Assignee: Jr Joseph Perna
- Priority: US65008423 1923-07-07
- Main IPC: H01C10/48
- IPC: H01C10/48
Information query
