Invention Grant
- Patent Title: Automatic pressure locking means
- Patent Title (中): 自动压力锁定装置
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Application No.: US45922030Application Date: 1930-06-04
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Publication No.: US1874697APublication Date: 1932-08-30
- Inventor: ERNEST DAVIS
- Applicant: PROSPERITY CO INC
- Assignee: Prosperity Co Inc
- Current Assignee: Prosperity Co Inc
- Priority: US45922030 1930-06-04
- Main IPC: D06F71/06
- IPC: D06F71/06
Information query
