88841831
Mar 20, 2020
Gas sensors for measuring gas concentrations; gas detectors for detecting the presence of gas; gas detecting, gas monitoring and gas analyzing apparatus and instruments in the nature of gas detectors for detecting the presence of gas, gas sensors for measuring gas concentration and structural parts and fittings thereof; gas sensors for measuring gas concentration; electrical cells, namely, electrochemical cells and structural parts and fittings thereof for sensing, detecting, measuring and analyzing gas
Electrical and Scientific Apparatus