U.S. federal trademark · Serial No. 73813326 · Reg. No. 1641029
NONMETALLIC ELASTOMERIC EXPANSION JOINTS AND NONMETALLIC ELASTOMERIC FLEXIBLE COUPLINGS BETWEEN PARTS OF LARGE VENTILATING AND GAS CONVEYING DUCTS
METALLIC AND NONMETALLIC ELASTOMERIC EXPANSION JOINTS REINFORCED WITH METAL AND METALLIC OR NONMETALLIC ELASTOMERIC FLEXIBLE COUPLINGS REINFORCED WITH METAL BETWEEN PARTS OF LARGE VENTILATING AND GAS CONVEYING DUCTS
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