U.S. federal trademark · Serial No. 71585243 · Reg. No. 0557178
CONTROLLING DEVICES, EMPLOYING ELECTRIC CIRCUIT CONTROLLING SWITCHES; NAMELY, [ VACUUM OPERATED ELECTRIC SWITCHES, ] PRESSURE OPERATED ELECTRIC SWITCHES [ , FLOAT OPERATED ELECTRIC SWITCHES, MECHANICALLY OPERATED ELECTRIC SWITCHES AND MAGNETICALLY OPERATED ELECTRIC SWITCHES, AND PARTS THEREOF INCLUDING MERCURY SWITCHES ]
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