U.S. federal trademark · Serial No. 78066289 · Reg. No. 2660875
THERMAL DIFFUSION SURFACE TREATMENT SERVICE CONSISTING OF A PROPRIETARY FLUIDIZED BED NITRO-CARBURIZING PROCESS; APPLIED TO ALL TYPES OF INDUSTRIAL TOOL STEELS USED IN DIE CASTING, PERMANENT MOLDS, PLASTIC INJECTION MOLDS, PERISHABLE CUTTING TOOLS, DRAWING/FORMING/BLANKING/FORGING DIES, AND OTHER TOOLING MADE FROM SIMILAR HOT WORK OR COLD WORK STEELS
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