75565644
Oct 5, 1998
Mar 30, 2004
IRRIGATION CONTROL SYSTEMS FOR MONITORING THE USE OF WATER, COMPRISED OF COMPUTER SOFTWARE AND ELECTRONIC MONITORING, COMMUNICATION, AND CONTROL UNITS
Electrical and Scientific ApparatusIRRIGATION CONTROL SYSTEMS FOR MONITORING THE USE OF WATER, COMPRISED OF VALVES AND SWITCHING UNITS
Environmental Control Apparatus