73166827
Apr 17, 1978
Dec 15, 1981
Belt and Chain Conveyors and Parts Therefor; Mining Machines-Namely, Continuous Miners, Auger Miners, and Shearer Miners; Mechanical Shortwall Roof Supports; Face Drilling Machines and Bits, Augers, Drill Rods, and Parts Therefor; Roof Drilling and Bolting Machines and Dust Collectors, Bits, Augers, Rods and Parts Therefor; Loading Machines; Feeder Breakers; Feeder Crushers; Carbide Mining Tools for Use in Mining Machines; Rock Dusting Machines; Electric Motors for Use in Mining Machinery; Air Compressors; Gear Reducers; Hydraulic Units and Parts Therefor; Bulk Breaker Systems Comprising Gaseous Discharge Cartridges for Dislodging Stoppage of Material Flow from Storage Bins; Silos, and Stockpiles; and Receiver Units for Storage of Compressed Air for High Pressure Discharge Cartridges
MachineryMine Vehicles for Transporting Personnel, Equipment, and Supplies and Electric Motors and Parts Therefor
Vehicles[Servicing, Reconditioning and Rebuilding Mining Machines and Equipment of Others; Structural Fabrication Services; and Belt and Chain Conveyor System Construction and Repair Services]
Building Construction and Repair[Engineering and Design of Mine Layout Systems for Others; Engineering and Design of Mining Systems for Others; Engineering and Design of Conveyor and Storage Systems for Others; Engineering and Design of Customized Mining Equipment for Others; Hydraulic System Design and Fabrication Services]
Computer and Scientific