Hydraulic breakaway system for mobile cutting apparatus

Land forming and/or farming apparatus

Method and apparatus for excavating trenches

Multi-blade ditching machine

Multi-blade ditching machine

Narrow ditch trencher

Offset ditcher with chain drive

Pivotable bucket with a rotatable earth moving mechanism

Power ditch router

Propulsion apparatus

Railroad mounted trench digger

Roadway trenching apparatus

Rotary ditcher having ripper blades

Rotary rockwheel assemblies

Rotary trench digging machine

Rotary trench excavator

Rotary trencher and shoe assembly therefor

Rotary trenching machine

Rotating disk type ditcher

Rotating disk-type ditcher