Title:
Hydraulically operable horizontal drilling apparatus
United States Patent 3107738
US Patent References:
Earth boring machine
- - 2196260
Method of producing cinematograph films
- - 2226643
Foundation auger
- - 2294318
Drilling apparatus
- - 2588068
Horizontal boring machine
- - 2684834
Earth boring machine
- - 2196260
Method of producing cinematograph films
- - 2226643
Foundation auger
- - 2294318
Drilling apparatus
- - 2588068
Horizontal boring machine
- - 2684834
Inventors:
Osborn, John D.
Publication Date:
10/22/1963
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Export Citation:
Assignee:
Gilbert, Turner M.
William, Horner M.
William, Horner M.
Primary Class:
Other Classes:
175/62, 173/31, 173/159, 173/149, 175/69, 175/219
International Classes:
E21B7/04