Invention Grant
- Patent Title: Automatic adjustment means
- Patent Title (中): 自动调整手段
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Application No.: US2980435Application Date: 1935-07-05
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Publication No.: US2183668APublication Date: 1939-12-19
- Inventor: BURKHARDT OTTO M
- Applicant: BURKHARDT OTTO M
- Assignee: Otto M Burkhardt
- Current Assignee: Otto M Burkhardt
- Priority: US2980435 1935-07-05
- Main IPC: F16D13/75
- IPC: F16D13/75
Information query
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