74261361
Apr 1, 1992
Sep 19, 1995
metal cylinders used to contain and maintain the purity and chemical stability of gases and gas mixtures
Metal Goodsgas handling equipment; namely, pressure regulators, control and shut-off valves, gas control and purge panels, and flow meters
Electrical and Scientific Apparatusgas purifier units and particulate filters for commerical and industrial use
Environmental Control Apparatus