73799721
May 12, 1989
Sep 3, 1991
FLEXIBLE PIPES FORMED FROM CERAMICS, EPOXY RESINS, MEMBRANES, POLYMERIZED RESINS, AND GLASS FIBER FABRIC; INFLATABLE LINING FOR PIPE FORMED FROM WOVEN GLASS FABRIC; ELECTRICAL INSULATING MATERIAL; NAMELY, POLYETHYLENE, POLYVINYL CHLORIDE; AND HARDENABLE RESINS FOR USE IN SEWER PIPES, WATER PIPES, MATERIAL CONVEYANCE PIPES, PIPELINES AND VENTILATION DUCTS ALL FOR USE AS ELECTRICAL INSULATION MATERIAL
Rubber GoodsSERVICES IN CONNECTION WITH RESTORATION OF SEWER PIPES, DRINKING WATER PIPES, GAS PIPES, PIPE LINES, VENTILATION DUCTS; REPAIR SERVICES FOR PIPES; RESTORATION OF PIPES; MAINTENANCE SERVICES TO PRESERVE PIPES AND CONDUITS IN THEIR ORIGINAL CONDITIONS
Building Construction and RepairENGINEERING SERVICES; RESEARCH, EVALUATION, ESTIMATIONS AND REPORTS IN CONNECTION WITH SEWER PIPES, WATER PIPES AND PIPES FOR CONVEYANCE OF MATERIALS
Computer and Scientific