E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
255/34
E21B 7/02 (2006.01)
Patent
CA 1245622
Abstract: A feed beam for a rock drill comprises a die beam (13) of aluminium, which has two beads (12, 13). Guides (20) for a cradle for a rock drill can be snapped onto the beads to embrace the beads and thereby be secured to the beads.
479910
Andersson Lars G.r.
Schorling Stefan H.g.
Atlas Copco Aktiebolag
Fetherstonhaugh & Co.
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