U.S. federal trademark · Serial No. 98613478 · Reg. No. 7722333
Argon; Ethylene; Helium; Hydrogen; Methane; Nitrogen; Ammonia for industrial purposes; Dry ice; Hydrogen chloride; Liquid carbon dioxide for industrial purposes; Nitrogen compounds; Nitrous oxide for industrial use; Oxygen for industrial purposes; Solidified protective gases for welding
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