74646642
Mar 14, 1995
Jul 2, 1996
industrial gases, namely oxygen, nitrogen, acetylene, argon, helium, welding grade CO2, hydrogen propane, deuterium, silane, oxygen-- argon combination and liquified natural gas
Chemicalsmedical and dental gases, namely nitrous oxide, cyclopropane, ethylene, oxygen-carbon dioxide combination, oxygen-helium conbination, and oxygen
Pharmaceuticals