78173611
Oct 11, 2002
Dec 14, 2004
Gas senors for measuring gas concentration of oxygen, nitrogen oxide, hydrocarbon, methane, alcohol and hydrogen in air or gas; gas sensors for detecting air/fuel ratio in the exhaust gas from internal combustion engines, boilers, incinerators, gas turbines and generators; electronic sensors for measuring pressure and temperature; electronic sensors for detecting knock, fluctuating load and air quality
Electrical and Scientific Apparatus