Reamer
United States Patent 3051255
US Patent References:
Underreamer
- - 1583073

Underreamer
- - 1822216

Rotary underreamer
- - 1866736

Underreamer
- - 1908594

Well bore enlarging tool
- - 2169502


Inventors:
Deely, Carroll L.
Publication Date:
08/28/1962
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Assignee:
Deely, Carroll L.
Primary Class:
175/265
Other Classes:
175/325.400, 175/406, 175/286
International Classes:
E21B10/32; E21B10/26
US Patent References:
2342292Rock drilling apparatus
2515377Cutting device