U.S. federal trademark · Serial No. 73499005 · Reg. No. 1357773
ELECTRONIC LOW FREQUENCY AND HIGH FREQUENCY HIGH-VOLTAGE GENERATORS AND ELECTRODES THEREFOR FOR GENERATING CORONA DISCHARGE FOR THE ACTIVATION OF PLASTIC MATERIAL SURFACES; TEST EQUIPMENT, NAMELY, PENCILS FILLED WITH TEST INK FOR CHECKING SURFACE TENSION OF PLASTIC MATERIAL SURFACES
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