Continuous coal or oil shale mining pulverizing and simultaneous burning apparatus
United States Patent 2800316
US Patent References:
/RE24004.html
- - RE24004

Oil shale mining machine
- - 2495840


Inventors:
Willis, Henderson
Publication Date:
07/23/1957
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Assignee:
Willis, Henderson
Primary Class:
299/6
Other Classes:
299/18, 299/56, 299/2, 175/15