System for rotary-percussion drilling in an earth formation
A Standard patent application filed on 02 October 2002 credited to Pols, Albert Cornelis ; Kriesels, Petrus Cornelis ; Zijsling, Djurre Hans

Details

Application number :

2002347045  

Application type :

Standard  

Application status :

LAPSED  

Under opposition :

No  

Proceeding type :

 

Invention title :

System for rotary-percussion drilling in an earth formation  

Inventor :

Pols, Albert Cornelis ; Kriesels, Petrus Cornelis ; Zijsling, Djurre Hans  

Agent name :

 

Address for service :

 

Filing date :

02 October 2002  

Associated companies :

 

Applicant name :

SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.  

Applicant address :

Carel van Bylandtlaan 30, NL-2596 HR The Hague  

Old name :

 

Original Source :

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