U.S. federal trademark · Serial No. 72105398 · Reg. No. 0738515
LIQUIDS WHOSE VISCOSITY INCREASES WHEN EXPOSED TO AN ELECTRIC FIELD AND ADAPTED TO FORM A FORCE COUPLE IN DEVICES SUCH AS ELECTROSTATIC NONMAGNETIC CHUCKS, SOUND TRANSDUCERS, HIGH-SPEED RELAYS, SHOCK ABSORBERS, FLOW CONTROL VALVES, HIGH-SPEED ELECTRIC CLUTCHES AND BRAKES
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