Title:
Attachment for the cutter bars of mining machines
United States Patent 2517267
US Patent References:
/1244601.html
- - 1244601

/1304352.html
- - 1304352

Kerf-cutting machine
- - 2165675


Inventors:
Watson, George C.
Publication Date:
08/01/1950
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Assignee:
Watson, George C.
Primary Class:
299/72
Other Classes:
299/82.100, 299/23
International Classes:
E21C31/00