|
US3021014A
|
|
Crane boom structure
|
|
US3073465A
|
|
Hydraulic crowd and retarding control systems for trench hoe attachments or the like
|
|
US2934049A
|
|
Diesel power hammer
|
|
GB817482A
|
|
Improvements in or relating to diesel power hammers
|
|
US2832605A
|
|
Skid mount for construction and excavating equipment
|
|
US2803972A
|
|
Control lever mechanisms
|
|
DE975722C
|
|
Diesel power hammer
|
|
US2664908A
|
|
Unloading valve
|
|
US2478747A
|
|
Front end tractor implement
|
|
US2525528A
|
|
Dragline bucket
|
|
US2328849A
|
|
Vehicle stabilizing mechanism
|
|
US2381425A
|
|
Stabilizer
|
|
US2348285A
|
|
Retractable mast
|
|
US2266179A
|
|
Traction control means
|
|
US2311304A
|
|
Combination crawler and rail vehicle
|
|
US2258478A
|
|
Excavating shovel
|
|
US2218258A
|
|
Traveling tread drive
|
|
US2216070A
|
|
Dipper stick for power shovels or the like
|
|
US2211194A
|
|
Saddle block structure for excavators
|
|
US2264231A
|
|
Excavating shovel
|
