74440397
Sep 27, 1993
oxygen, nitrogen, helium, argon, CO2, and mixtures respectively of oxygen, and nitrogen, oxygen and helium, oxygen and argon, oxygen and CO2, nitrogen and helium, nitrogen and argon, nitrogen and CO2, helium and argon, helium and CO2, and argon and CO2 for use in the food industry and industrial processing of products requiring gaseous atmospheres
Chemicals