128988 ⎘
Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with arrangements for reinforcing trenches or ditches; with arrangements for making or assembling conduits or for laying conduits or cables operatively associated with mole-ploughs, coulters with oscillating or vibrating digging tools
Pipeline following sensor arrangement
#2Parallel Utility Installation Apparatus And Method
#3APPARATUS FOR ENTRENCHING A FLEXIBLE ELONGATE MEMBER, SUCH AS A ROPE, CABLE OR PIPE
#4VIBRATORY CABLE PLOW
#5Apparatus, systems and methods for excavating trenches in earth or soil and installing underground conduits or other media
#6Apparatus, systems and methods for excavating trenches in earth or soil and installing underground conduits or other media
#7Serrated plow blade for vibratory plow systems
#8Self-propelled underwater vehicles and systems for underground laying a continuous elongated member in a bed of a body of water
#9Pipeline burial in offshore and arctic offshore regions
#10Vibratory ripper having depth adjustable ripping member
#11Spring loaded J bar T handle
#12Method and system for laying underground a continuous elongated member in a bed of a body of water
#13Method for compacting soil, applications of this method and devices for its implementation
#14Laying device
#15VIBRATORY PLOW ASSEMBLY
#16Construction machine
#17Vibratory plow assembly
#18Subsurface installation of tubing
#19Plow tunneling