85460754
Oct 31, 2011
Sep 18, 2012
Explosion protection isolation valves for safety purposes, namely, valves for controlling and regulating the flow and transmission of pressure, flame, gases or liquids not being parts of plumbing, heating or cooling installations and/or of machines; fast acting safety valves for flow shutoff of flammable or combustible materials in a section of pipe
Electrical and Scientific Apparatus