Tool for severing and milling away a section of casing in the bore of a well
United States Patent 2709490
US Patent References:
/1094169.html
- - 1094169

Cutting tool
- - 2199020

Casing mill
- - 2299528

Pipe cutter and reamer
- - 2322694

Coupling
- - 2394236


Inventors:
Trimble, Harry C.
Woelfel, Albert E.
Publication Date:
05/31/1955
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Assignee:
A 1 BIT & TOOL COMPANY INC
Primary Class:
166/55.800
Other Classes:
409/178, 409/143, 285/305
International Classes:
E21B29/00; E21B29/06
US Patent References:
2552543Coupling