A DRAG BIT FOR ROTARY ROCK DRILLING
A Standard patent application filed on 04 July 1980 credited to Andersson, Kurt Holger ; Ekwall, Carl Gosta Bernhard ; Lewkowicz, Jose

Details

Application number :

61222  

Application type :

Standard  

Application status :

LAPSED  

Under opposition :

No  

Proceeding type :

 

Invention title :

A DRAG BIT FOR ROTARY ROCK DRILLING  

Inventor :

Andersson, Kurt Holger ; Ekwall, Carl Gosta Bernhard ; Lewkowicz, Jose  

Agent name :

WATERMARK PATENT AND TRADE MARKS ATTORNEYS  

Address for service :

Level 2 302 Burwood Road HAWTHORN VIC 3122  

Filing date :

04 July 1980  

Associated companies :

 

Applicant name :

A.B. Atlas Copco  

Applicant address :

 

Old name :

 

Original Source :

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