U.S. federal trademark · Serial No. 73640817 · Reg. No. 1454054
PORTABLE LABORATORY TEST EQUIPMENT, NAMELY, DISC COMPARATOR, COLOR DISC, COMPARATOR TUBE, [ STINNING ] * STIRRING * ROD, HOT PLATE, HEATING BLOCK, THERMOMETER AND CRUCIBLE TONGS FOR USE IN ANALYZING THE IRON CONTENT OF COOLING WATER AND BOILER WATER SYSTEMS
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