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Inventor
STROEM ROLF
FI
2 patents
Patents
2 patents
US4702621A
Oct 27, 1987
Bearing arrangement for a feeding device for a drilling machine
TAMPELLA OY AB
18 citations
70
US4979575A
Dec 25, 1990
Method of drilling a hole-in a rock
TAMPELLA OY AB
11 citations
67