Thread coupling for drill string elements for percussive drilling

Application number :: 39972
Application type :: Standard
Application status :: CEASED
Under opposition :: No
Proceeding type :
Invention title :: Thread coupling for drill string elements for percussive drilling
Inventor :: Stjernstrom, Karl-Axel ; Nordfeldt, Leif
Agent name :: WATERMARK PATENT AND TRADE MARKS ATTORNEYS
Address for service :: Level 2 302 Burwood Road HAWTHORN VIC 3122
Filing date :: 21 November 1995
Associated companies :
Applicant name :: Uniroc AB
Applicant address :: Box 521 S-737 25 Fagersta Sweden
Old name :
Original Source :: Go

Thread coupling for drill string elements for percussive drilling A Standard patent application filed on 21 November 1995 credited to Stjernstrom, Karl-Axel ; Nordfeldt, Leif