HYDRAULIC GUIDING BOOM FOR A ROCK DRILL
United States Patent 3462103
US Patent References:
Pruning and picking platform implement
- - 2606078
Extensible chain boom
- - 3179267
Adjustable mounting for rock drills
- - 3226064
Pruning and picking platform implement
- - 2606078
Extensible chain boom
- - 3179267
Adjustable mounting for rock drills
- - 3226064
Inventors:
Strom, Rolf
Publication Date:
08/19/1969
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Export Citation:
Assignee:
TAMPELLA OY AB
Primary Class:
Other Classes:
173/193, 182/2.900
International Classes:
E21B15/04; E21B15/00; F16M11/00
Foreign References:
| FR1189002A |