Coupling piece for use at simultaneous earth and/or rock drilling with an upper rotary percussion device and a lower percussion device
A Standard patent application filed on 25 August 1997 credited to Borg, Tomas

Details

Application number :
39555  
Application type :
Standard  
Application status :
LAPSED  
Under opposition :
No  
Proceeding type :
 
Invention title :
Coupling piece for use at simultaneous earth and/or rock drilling with an upper rotary percussion device and a lower percussion device  
Inventor :
Borg, Tomas  
Agent name :
 
Address for service :
 
Filing date :
25 August 1997  
Associated companies :
 
Applicant name :
Atlas Copco Craelius AB  
Applicant address :
 
Old name :
 
Original Source :
Go  

Same Inventor