Extendible and retractable actuator
Flat lifting device
Floating frame
Grain auger jack
Hoist mechanism
Hydrostatic load relief for lifting spindles
Jack
Jack
Jack adapter
Jack assembly for supporting a shelter structure
Jack for automobile
Jack mechanism having positive stop means for its crank handle
Jack mechanism having safety protection for workers
Jack post
Lifting device
Lifting device for the controlled vertical transfer of objects
Lifting jack
Lifting jack and cover therefor
Lifting jack for vehicles
Linear spreader