MACHINES AND IMPLEMENTS FOR USE IN AGRICULTURE, HORTICULTURE AND FORESTRY, ESPECIALLY FOR PREPARING SKI-RUNS, NAMELY SNOW COURSE MAINTENANCE MACHINES; SNOW COURSE TRACKING MACHINES; SNOW CONDITIONING MACHINES; ATTACHMENTS FOR LAND VEHICLES, NAMELY, TRASH COLLECTING AND DUMPING ATTACHMENTS, SNOW GROOMING ATTACHMENTS

Hydraulic controls for machines, motors, and engines; hydraulic regulating apparatus, namely, regulators being parts of machines; machine parts, namely, hydraulic gear drives for work apparatus and machines