Invention Grant
- Patent Title: Geared power unit for oil wells
- Patent Title (中): 油井齿轮动力装置
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Application No.: US68462933Application Date: 1933-08-11
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Publication No.: US2054782APublication Date: 1936-09-15
- Inventor: DAY PERCY C
- Applicant: FALK CORP
- Assignee: Falk Corp
- Current Assignee: Falk Corp
- Priority: US68462933 1933-08-11
- Main IPC: F16H57/04
- IPC: F16H57/04
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