Invention Grant
- Patent Title: Feeding mechanism for rock drills
- Patent Title (中): 凿岩机进料机构
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Application No.: US16615337Application Date: 1937-09-28
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Publication No.: US2149592APublication Date: 1939-03-07
- Inventor: ALBERT FEUCHT
- Applicant: CLEVELAND ROCK DRILL CO
- Assignee: Cleveland Rock Drill Co
- Current Assignee: Cleveland Rock Drill Co
- Priority: US16615337 1937-09-28
- Main IPC: E21B19/081
- IPC: E21B19/081
Public/Granted literature
- US11871375B2 Devices and methods for flow-control triggering and feedback Public/Granted day:2024-01-09
Information query
