Invention Grant
- Patent Title: Anchor for drill-steel guides
- Patent Title (中): 钻钢导轨锚杆
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Application No.: US16095827Application Date: 1927-01-13
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Publication No.: US1719003APublication Date: 1929-07-02
- Inventor: DOWNING EDWIN J , SHEETS BARTON R , CROFT LORENZO E
- Applicant: GARDNER DENVER CO
- Assignee: Gardner Denver Co
- Current Assignee: Gardner Denver Co
- Priority: US16095827 1927-01-13
- Main IPC: B23B47/28
- IPC: B23B47/28 ; E21B19/24
Public/Granted literature
- US10937130B1 Image color enhancement method and device Public/Granted day:2021-03-02
Information query
