73206506
Mar 8, 1979
Feb 1, 1983
Apparatus for Use in the Manufacture of Cement, Lime, Chemicals, and Metals-Namely, Comminuting Mills, Mechanical and Pneumatic Sifters and Sieves, Mechanical Conveyors, and Pneumatic Conveyors
MachineryApparatus for Use in Systems for Conveying Materials-Namely, Material Weigh Measurers, Material Flow Regulators, Material Flow Controls, Material Flow Indicators, and Material Flow Rate Recorders
Electrical and Scientific Apparatus