E - Fixed Constructions – 21 – B
Inventor
E - Fixed Constructions
21
B
Inventor
Country: Australia
A drive sub for receipt of bit segments
A tool for transporting cutting means for in situ...
An insert for releasably retaining cutting means in a ground...
Bit segment for seating in a cutting position to form...
System for in situ replacement of cutting means for a ground...
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