U.S. federal trademark · Serial No. 73811454 · Reg. No. 492718
DRILLING PIPES, THEIR PARTS AND FITTINGS NAMELY, JOINTS FOR DRILLING PIPES, COLLARS OF METAL FOR FASTENING PIPES, [ STEEL CYLINDERS FOR COMPRESSED GAS OR LIQUID AIR, ] STEEL PIPES, STEEL TUBES, TUBES OF METAL, JUNCTIONS OF METAL FOR PIPES
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