|
US3882883A
|
|
Closed-open center hydraulic valve assembly
|
|
US3709464A
|
|
Device for imbedding and removing elongated members
|
|
US3521066A
|
|
Railroad track alignment indicating system employing modulated infrared techniques
|
|
US3326304A
|
|
Hydraulic tools
|
|
US3240161A
|
|
Vibratory apparatus for movement of objects
|
|
US3163122A
|
|
Apparatus for setting and driving railroad spikes
|
|
US3045648A
|
|
Fluid pressure-actuated tool
|
|
US3144835A
|
|
Railway tie hole-plugging machine
|
|
US3114331A
|
|
Machine for driving tie plugs
|
|
US2919678A
|
|
Hydraulic driving apparatus
|
|
GB802532A
|
|
Hydraulic driving apparatus
|
|
US2989926A
|
|
Railway tie handling apparatus
|
|
US2846187A
|
|
Hydraulic spike pulling apparatus
|
|
US2855706A
|
|
Machine for shaping tie beds
|
|
US2911734A
|
|
Railway ballast digging apparatus
|
|
US2762313A
|
|
Railway track appliances
|
|
US2655873A
|
|
Railway motor vehicle
|
|
US2621539A
|
|
Cam construction for use in timers
|
|
US2655872A
|
|
Vehicle structure
|
|
US2566178A
|
|
Cab top mounting for railway motor cars
|
