Apparatus for directing and steering the foremost part of a drillpipe at drillings
A Standard patent application filed on 22 January 1998 credited to Van Den Bergh, Johannes Wilhelmus Henricus

Details

Application number :

56819  

Application type :

Standard  

Application status :

LAPSED  

Under opposition :

No  

Proceeding type :

 

Invention title :

Apparatus for directing and steering the foremost part of a drillpipe at drillings  

Inventor :

Van Den Bergh, Johannes Wilhelmus Henricus  

Agent name :

 

Address for service :

 

Filing date :

22 January 1998  

Associated companies :

 

Applicant name :

Van Den Bergh, Johannes Wilhelmus Henricus  

Applicant address :

 

Old name :

 

Original Source :

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