Invention Grant
- Patent Title: Door controller
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Application No.: US57279445Application Date: 1945-01-15
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Publication No.: US2414894APublication Date: 1947-01-28
- Inventor: FRANK PFENT
- Applicant: FRANK PFENT
- Assignee: Pfent Frank
- Current Assignee: Pfent Frank
- Priority: US57279445 1945-01-15
- Main IPC: E05F1/10
- IPC: E05F1/10 ; E05F1/14
Information query
