E - Fixed Constructions – 21 – B
Inventor
E - Fixed Constructions
21
B
Inventor
Country: France
Blades stabiliser with a minimum of one venturi effect...
Controlled path boring mountings with a variable angle elbow...
Controlled path drill tool equipped with a variable geometry...
Device and method for remotely actuating an equipment -...
Device for adjusting the path azimuth of a rotary drilling tool
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