CABLE TELEVISION EQUIPMENT ADAPTED FOR INSTALLATION IN CABLE TELEVISIO N SYSTEMS--NAMELY, BLADE CORING TOOLS, SERVICE DUCTS AND COVERS FOR HOUSING SPLITTERS AND COUPLERS, TRAP ENCLOSURES FOR NOTCH FILTER TRAPS SECURITY ENCLOSURES FOR MULTIPLE SUBSCRIBER INSTALLATIONS, RISER PIPE SYSTEMS FOR PROTECTION OF CABLES, PREWIRED BOXES FORCOMPONENTS, PANEL S FOR ENCLOSURES, ABOVE GROUND AND UNDERGROUND SERVICE CELLS, DROP CABLE STRAIN RELIEF GRIPS, FLEXIBLE CABLE CONDUIT FOR SERVICE DROPSAN D TRUNK LINES, CONDUIT CUTTERS, AERIAL SUPPORTS, SPACERS AND LASHED CABLE SUPPORTS, AND STRUCTURAL PARTS, FITTINGS AND ACCESSORIES THEREFOR
Electrical and Scientific Apparatus