Cutting tool
United States Patent 2940522
US Patent References:
Well drilling bit
- - 1923487

Casing mill
- - 2299528

Milling tool
- - 2353284

Well casing milling device
- - 2690217

Combination mill and under-reamer for oil wells
- - 2690897


Inventors:
Taylor, Joseph W.
Holleron, William K.
Publication Date:
06/14/1960
View Patent Images:
Download PDF 2940522 pdf       PDF help
Export Citation:
Click for automatic bibliography generation
Assignee:
US INDUSTRIES INC
Primary Class:
407/30
Other Classes:
407/51, 407/118, 407/61, 175/269, 407/115, 166/55.800, 175/325.200, 175/408
International Classes:
E21B10/00; E21B10/32; E21B17/10; E21B29/00; E21B10/26; E21B17/00
US Patent References:
2693938Drilling bit
2725936Fluid pressure operated pipe cutting or milling apparatus with floating valve
Foreign References:
FR1115540A