135197 ⎘
Special methods or apparatus for drilling; Drilling without earth removal, e.g. with self-propelled burrowing devices Combined with earth removal
Device for laying pipes in the ground
#2ROCK-PIERCING FLEXIBLE ROCK DRILLING ROBOT AND ROCK BREAKING METHOD
#3KINETIC PENETRATOR WITH A RETRIEVAL TETHER
#4Kinetic penetrator with a retrieval tether
#5Drilling bucket and method for drilling a bore hole
#6Robotic tunneling system
#7Drilling rig and drilling method
#8Method for the trenchless laying of pipes
#9Underground drilling device employing down-hole radar
#10Split tube soil sampling system