Reverse circulation drilling system with bit locked underreamer arms
A Standard patent application filed on 17 July 1998 credited to Holte, Ardis L.

Details

Application number :

84873  

Application type :

Standard  

Application status :

CEASED  

Under opposition :

No  

Proceeding type :

 

Invention title :

Reverse circulation drilling system with bit locked underreamer arms  

Inventor :

Holte, Ardis L.  

Agent name :

FB Rice  

Address for service :

Level 23 44 Market Street SYDNEY NSW 2000  

Filing date :

17 July 1998  

Associated companies :

 

Applicant name :

Holte, Ardis L.  

Applicant address :

181 Polk Street Eugene OR 97402 United States Of America  

Old name :

 

Original Source :

Go  

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