Method and apparatus for backfilling pipeline trenches
Method and apparatus for consolidating earth strata
Method and apparatus for consolidating earth strata
Method and apparatus for installing highway drainage mat
Method and appliance for laying a sheet of material in the groun
Method and device for burying a conduit under water
Method and device for forming a fluid permeation control layer o
Method and device for insulation of the ground
Method and device for laying an underground telecommunications c
Method and equipment for laying an elongated element underground
Method for laying tile or pipe underground
Method for pipeline padding
Method of and apparatus for controlling fluid leakage through so
Method of and apparatus for controlling fluid leakage through so
Method of and apparatus for controlling fluid leakage through so
Multiple pipe installation backfilling, and compaction attachmen
Oscillating plow apparatus
Padding machine
Padding machine and method of use
Permitting two adjacent pipe lengths to be joined together