U.S. federal trademark · Serial No. 77226715 · Reg. No. 3712516
[ METAL LOCKS FOR MANHOLE COVERS; ] METAL CONSTRUCTION CASTINGS, NAMELY, MANHOLE COVERS, CATCH BASIN COVERS, CATCH BASIN INLETS, [ ELEVATED AND BRIDGE DRAIN INLETS, ] CATCH BASIN TRAPS, CATCH BASIN HOODS, SEWER PIPE GRATES AND COVERS, DITCH GRATES, TRENCH FRAMES AND GRATES, CATCH BASIN CURB INLETS [, AND TREE GRATES ]
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