ZONECHECK
Automatic fire prevention sprinkler systems comprising pipes, valves, circulating pumps, and switches sold or installed as a unit, and component parts thereof; unit comprised of a key switch, valve and an automatic alarm valve tester; devices comprised of valves [ and solenoids ] for testing water flow switches; electric test flow switches; automatic valves for use with automatic sprinkler systems; and electric flow switches
Registered · March 1, 1999 · 75649763 ·