U.S. federal trademark · Serial No. 73683952 · Reg. No. 1524213
LEVEL INDICATORS AND LEVEL CONTROLS FOR INDICATING AND CONTROLLING THE LEVELS OF MATERIALS IN BINS, HOPPERS, TANKS AND THE LIKE; NAMELY, BIN LEVEL INDICATORS, BIN LEVEL CONTROLS, MATERIAL LEVEL INDICATORS, TILT SWITCHES AND HOPPER SWITCHES
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