U.S. federal trademark · Serial No. 88139865 · Reg. No. 1974921
Steel pipes; Ducts and pipes of metal for central heating installations; Pipes of metal; Pipes of metal, for central heating installations; Drain pipes made of metal; Water-pipes of metal; Casings of metal for oilwells; Pipework of metal; Ducts of metal for ventilating and air-conditioning installations; Manifolds of metal for pipelines
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