Attachments for bulldozers; bulldozers; swamp bulldozers; graders (machines or parts of machines); motor graders (machines); attachments for excavators; bucket excavators; double shell grippers for excavators; excavators; excavators (earth working machines); excavators for hydraulic expansion machines; loader buckets for excavators; mini excavators; power trains for mechanical excavators; power transmission apparatus for mechanical excavators; power transmission belting for mechanical excavators; power transmission belts for mechanical excavators; trenchers (excavators); articulated loaders; fork lift attachments for front-end loaders; front loaders for tractors; loaders for agricultural machines; loaders for packing goods; shovel loaders (machines); skid steer loaders; tractor loaders