U.S. federal trademark · Serial No. 71580621 · Reg. No. 0540738
TIMING APPARATUS, CONSISTING OF ELECTRIC DISCHARGE TUBES, CAPACITORS,RESISTORS, TRANSFORMERS, SWITCHES, AND OTHER COOPERATING ELECTRICAL PARTS ALL ASSOCIATED INTO A SINGLE OPERATIVE UNIT AND INTENDED FOR USE WITH ELECTRIC WELDING MACHINES, TO DETERMINE AND CONTROL THE OPERATING STEPS THEREOF
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