E - Fixed Constructions – 21 – C
Patent
E - Fixed Constructions
21
C
E21C 25/06 (2006.01) B23Q 11/00 (2006.01) B24D 5/00 (2006.01) B28D 1/18 (2006.01) B28D 1/26 (2006.01)
Patent
CA 2108318
ABSTRACT A propelled eccentric drive for superimposing a percussive action onto drilling,milling, ripping and compacting operations having tools which are compensated/counterbalanced with reference to predetermined counterweights.
Bechem Klaus
Bechem Philip
Bechem Ulrich
Bechem Hannelore
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
LandOfFree
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