74256522
Mar 18, 1992
Sep 14, 1993
[ gas storage and delivery chemical; and gas sorption chemicals for removal of impurities and contaminants in gas streams ]
Chemicalsgas handling apparatus; namely, gas purifiers; gas scrubbers; gas storage/delivery equipment; in-situ gas generation equipment; in-line gas stream impurity detection equipment; dopant delivery equipment for manufacture of doped solid materials
Environmental Control Apparatus[ technical consultation in the field of industrial gas processes and associated equipment ]
Computer and Scientific