Controlled fragmentation of hard rock by pressurization of the bottom of a drill hole
A Standard patent application filed on 29 June 2000 credited to Young, Chapman III
;
Watson, John D.
Details
Application number :
43757
Application type :
Standard
Application status :
CEASED
Under opposition :
No
Proceeding type :
Invention title :
Controlled fragmentation of hard rock by pressurization of the bottom of a drill hole