135193 ⎘
Special methods or apparatus for drilling; Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes without earth removal using down-hole drives
Trenchless pipeline installation system
#2Reversible pneumatic pipe ramming tool
#3Drill with integrally formed bent sub and sonde housing
#4Two-port percussion mole
#5Method and device for reconstructing old underground pipes
#6Method and apparatus for installing an underground pipe
#7Method and apparatus for replacement of underground pipe
#8Method and apparatus for underground pipeline installation