Baby walker with safety track feature
Ball drive mechanism for load supporting hanger
Ballast cleaning machine with compacting device
Ballast cleaning machine with pivotal and varying speed conveyor
Ballast cleaning machine with vibrator attached to track lifting
Ballast cleaning method and machine
Ballast leveling apparatus
Ballast plow assembly for a hopper-type railroad car
Ballast reconditioning apparatus with multiple excavating wheels
Ballast shoulder consolidator
Ballast tamping
Ballast tamping apparatus
Ballast tamping assembly
Ballast tamping assembly
Ballast tamping assembly with mechanical stops on tamping picks
Ballast tamping implement on a mobile track tamper
Ballast tamping machine
Ballast tamping machine
Ballast tamping machine
Ballast tamping machine