72259329
Nov 23, 1966
Nov 5, 1968
MEASURING INSTRUMENTS FOR THE MEASUREMENT OF CHEMICAL VALUES AND OTHER VALUES CHARACTERIZING A CHEMICAL STATE AS WELL AS CHEMICAL ANALYSIS, WHICH INSTRUMENTS ARE: COULOMETRIC APPARATUS; PH METERS; [ COLORIMETERS; ] CONDUCTIVITY METERS; [ POTENTIOMETERS; POLARIZATION METERS; ] TITRATING APPARATUS; AND RECORDERS FOR THE FOREGOING INSTRUMENTS
Fancy Goods