Hydraulic down-the-hole rock drill
A Standard patent application filed on 12 July 1990 credited to Gustafsson, Per

Details

Application number :
61442  
Application type :
Standard  
Application status :
LAPSED  
Under opposition :
No  
Proceeding type :
 
Invention title :
Hydraulic down-the-hole rock drill  
Inventor :
Gustafsson, Per  
Agent name :
 
Address for service :
 
Filing date :
12 July 1990  
Associated companies :
 
Applicant name :
G-Drill AB  
Applicant address :
 
Old name :
 
Original Source :
Go  

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