73507420
Nov 5, 1984
Sep 30, 1986
CHEMICAL PRODUCTS FOR BUSINESS AND SCIENTIFIC PURPOSES, NAMELY, CHEMICAL REAGENTS FOR THE TESTING OF WATER AND TEST KITS FOR THE ANALYSIS OF WATER
ChemicalsSTATIONARY AND PORTABLE APPARATUS FOR EVALUATING THE CONDITION, QUALITY AND COMPOSITION OF WATER, NAMELY, ELECTRICAL APPARATUS FOR MEASURING PH, OXYGEN MEASURING APPARATUS, ELECTRICAL CONDUCTIVITY METERS, PHOTOMETERS, COLORIMETERS, FLOCCULATION TESTERS, BOD (BIOCHEMICAL OXYGEN DEMAND) MEASURING APPARATUS AND COD (CHEMICAL OXYGEN DEMAND) MEASURING APPARATUS
Electrical and Scientific Apparatus