U.S. federal trademark · Serial No. 79368433 · Reg. No. 7518302
High purity gases, namely, atmospheric gases, oxygen, nitrogen, argon, carbon monoxide, carbon dioxide, methane, ethane, ammonia, hydrogen chloride, hydrogen sulfide, sulfur dioxide, hydrogen, pentane, hexane, propane, propylene, butane, isobutene, butylene, butadiene, acetylene, benzene, alkyl benzenes, methyl mercaptan, ethyl mercaptan, carbonyl sulfide, carbonyl disulfide, nitric oxide, chlorine, thiophene; special purpose gases and special gas mixtures for industrial purposes, technical purposes, research purposes, science, especially, gases being detection, calibration and test gases, and protective and shielding gases, reactive and active gases
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