Invention Grant
- Patent Title: Ventilating fan control
- Patent Title (中): 通风风扇控制
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Application No.: US25407439Application Date: 1939-02-01
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Publication No.: US2225349APublication Date: 1940-12-17
- Inventor: MORSE HAROLD F
- Applicant: GEN ELECTRIC
- Assignee: Gen Electric
- Current Assignee: Gen Electric
- Priority: US25407439 1939-02-01
- Main IPC: F24F7/013
- IPC: F24F7/013
Information query
