Drill wagons for use in tunneling or the like
United States Patent 2806673
US Patent References:
/1111814.html
- - 1111814

/1196309.html
- - 1196309

Mining machine
- - 1885295

Transportable bridge
- - 1960355

Apparatus for rock tunneling
- - 1992129


Inventors:
Patrik, Danielsson Jan
Publication Date:
09/17/1957
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Assignee:
ATLAS COPCO AB
Primary Class:
173/187
Other Classes:
173/52, 173/42, 182/39, 175/207, 173/34, 175/219
US Patent References:
2053665Portable drilling rig
2396365Adjustable platform for mine cars
2614807Rock drilling apparatus
Foreign References:
GB319933A
FR962950A