74186502
Jul 19, 1991
Jul 14, 1992
gases and gas mixtures, in gas and liquid form, for commercial and laboratory uses; namely, compressed air, oxygen, nitrogen, argon, hydrogen, helium, carbon monoxide, carbon dioxide, cyclopropane, methane, ethylene, propane, and various other mixtures of same
Chemicalstransportation by pipeline, road, and rail, and storage of gases and gas mixtures for commercial and laboratory use
Transportation and storage