B66B17/14—Applications of loading and unloading equipment
B66B17/16—Applications of loading and unloading equipment for loading and unloading mining-hoist cars or cages
B66B17/20—Applications of loading and unloading equipment for loading and unloading mining-hoist cars or cages by moving vehicles into, or out of, the cars or cages
Landscapes
A Measuring Device Byusing Mechanical Method
(AREA)