73827455
Sep 25, 1989
Nov 6, 1990
PURE GASES AND MIXES THEREOF FOR GENERAL INDUSTRIAL USES, ELECTRONIC USES AND SPECIALTY USES, NAMELY, METHANE, AIR, OXYGEN, AMMONIA, HALOCARBONS, XENON, NEON, HYDROGEN, CARBON DIOXIDE, NITROGEN, CARBON MONOXIDE, HYDROGEN SULFIDE, ETHYLENE, ACETYLENE, CHLORINE, ARGON, BUTANE, DEUTERIUM, ETHANE, FLOURINE, HELIUM, ISOBUTANE, KRYPTON, PHOSGENE, AND MIXTURES THEREOF
Chemicals