Drilling tool for down-the-hole drilling, reamer means and body element for use in the tool
A Standard patent application filed on 28 July 1998 credited to Asberg, Bengt
Details
Application number :
85651
Application type :
Standard
Application status :
LAPSED
Under opposition :
No
Proceeding type :
Invention title :
Drilling tool for down-the-hole drilling, reamer means and body element for use in the tool