74531712
May 31, 1994
Aug 13, 1996
differential pressure indicators and automatic drain valves which are a float type drain valve
Electrical and Scientific Apparatusfiltration systems and related products for industrial use, namely compressed air filters, screwed range and flanged range; filter elements; high pressure filters for use in various industrial environments for air and gas filtration; dust filters; duplex filters; drain valve equipment for use in filtration systems, consisting of manual drain valves for low, medium and high pressure applications; vacuum pump protection and exhaust filters
Environmental Control Apparatus