U.S. federal trademark · Serial No. 73436043 · Reg. No. 1356242
HARD-FACING MATERIAL FOR TOOLS, SOLD APPLIED TO OIL WELL DRILLING TOOLS
RENTAL OF OIL WELL DRILLING TOOLS TREATED WITH THE HARD-FACING MATERIAL
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.