Earth auger
United States Patent 2415572
US Patent References:
Earth-boring machine
- - 1375640
Drilling apparatus
- - 1884716
Combined earth boring machine and derrick apparatus
- - 1887172
Drilling machine
- - 2060814
Hydraulic power drilling rig
- - 2200075
Earth-boring machine
- - 1375640
Drilling apparatus
- - 1884716
Combined earth boring machine and derrick apparatus
- - 1887172
Drilling machine
- - 2060814
Hydraulic power drilling rig
- - 2200075
Inventors:
Jaques, John C.
Publication Date:
02/11/1947
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Export Citation:
Assignee:
Jaques, John C.
Primary Class:
Other Classes:
173/150, 173/185
International Classes:
A01G17/16; E21B7/02; A01G17/00
US Patent References:
| 2251013 | Machine for setting, shifting, and removing poles |