U.S. federal trademark · Serial No. 71573880 · Reg. No. 0548931
ELECTRICAL INSTRUMENT EQUIPPED WITH AN OPTICAL SYSTEM FOR VISIBLY RECORDING VARIATIONS OF ELECTRIC CURRENT WHEREIN THE VARIATIONS IN THE CURRENT CAUSE INVISIBLE RADIATIONS TO IMPINGE UPON A MOVING SENSITIZED SHEET AND PRODUCE A VISIBLE TRACE ILLUSTRATING THE OSCILLATIONS OR VARIATIONS IN THE ELECTRIC CURRENT AS THEY OCCUR
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.