Rubber tracks being parts of continuous track vehicles for backhoe loaders, namely, excavators; shoe pads in the nature of rubber tracks being parts of continuous track vehicles for backhoe loaders, namely excavators; rubber tracks being parts of drilling machine; shoe pads in the nature of rubber tracks being parts of drilling machine; rubber tracks being parts of continuous track vehicles for combine harvesters; shoe pads in the nature of rubber tracks being parts of continuous track vehicl...