73833841
Oct 25, 1989
METALLIC PIPING DETECTORS, EITHER BY ACOUSTIC OR MAGNETIC METHODS; GEORADARS FOR DETECTING NON-METALLIC PIPING (ASBESTOS, PVC, CEMENT, CONCRETE) AND FOR LOCATING LEAKS BY DIELECTRIC DIFFERENCES IN THE SOIL; FLOW-MEASURING APPARATUS BY CONDUIT-INSERTABLE FLOW-METERS, OR BY PORTABLE ULTRASONIC FLOW-METERS USED OUTSIDE PIPING; PROGRAMMABLE FLOW AND PRESSURE MEASURING APPARATUS WITH COMPUTERIZED DATA LOGGER; COMPUTER PROGRAMS FOR ANALYZING LEAKS ACCORDING TO TYPE OF CONDUIT, DIAMETER AND THE BUILDING SERVED; ENDESCOPES FOR MONITORING THE INTERIOR CONDITION OF CONDUITS; APPARATUS FOR CLOSING CONDUITS THE EVENT OF VALVE FAILURE; SYNTHETIC RESIN BASED SLEEVES FOR REPAIRING CONDUITS
Environmental Control ApparatusSERVICES OF REPAIRING, MAINTAINING, CHECKING, AND CLEANING WATER DISTRIBUTION SYSTEMS; PLUMBING SERVICES; INSTALLATION, DISTRIBUTION AND EVACUATION OF WATER AND GAS DISTRIBUTION SYSTEMS
Building Construction and RepairENGINEERING CONSULTING SERVICES, MATERIAL TESTING SERVICES; INDUSTRIAL DESIGN SERVICES, AND TECHNICAL RESEARCH SERVICES, IN THE FIELD OF WATER AND GAS DISTRIBUTION SYSTEMS
Computer and Scientific