Drilling apparatus

Details Drilling apparatus Drilling apparatus

E - Fixed Constructions

21

B

255/50, 255/14.7

E21B 19/00 (2006.01) E21B 19/16 (2006.01)

Patent

CA 1086296

ABSTRACT OF THE DISCLOSURE A drilling apparatus having a novel method and means for assembly and dissasembly of a drill string.

283420

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