U.S. federal trademark · Serial No. 79146362 · Reg. No. 4766337
Industrial light fittings in the nature of high temperature illuminated industrial sight glasses and high pressure illuminated industrial sight glasses for installation in the walls of tanks, hoppers, silos, agitators and other process equipment for illuminating and visually monitoring industrial processes; and electric industrial process lights for mounting on industrial light fittings in the nature of sight glasses for illuminating an industrial process
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