74647503
Mar 16, 1995
Nov 26, 1996
gas regulators for cylinders for helium gas; valves made of metal for helium gas, namely, flow control valves
Environmental Control Apparatustransportation of gas cylinders by truck, train and air; rental of gas cylinders
Transportation and storageeducational services, namely, conducting on-site classes, seminars and workshops in the field of helium gas handling, safety and service and the distributing of course materials in connection therewith
Education and Entertainment