9 OPTICAL FIBRES, OPTICAL FIBRE CABLES, AND OPTICAL FIBRE CONNECTORS; ELECTRICAL INSTRUMENTS FOR USE IN THE INSTALLATION, TESTING, AND REPAIR OF OPTICAL FIBRES, OPTICAL FIBRE CABLES AND OPTICAL FIBRE CONNECTORS; CONDUITS FOR RECEIVING OPTICAL FIBRE AND OPTICAL FIBRE CABLES, OPTICAL FIBRE ELECTRIC INTERFACES; OPTICAL FIBRE SYSTEMS COMPRISING OPTICAL FIBRES, CONDUITS, CONNECTORS AND ANCILLARY PARTS; FITTINGS; NAMELY, CONNECTORS, CONDUIT CLOSURES, CONNECTION BOXES, GLANDS, COVERS, PROTECTIVE SLEEVES, SHROUDS, FIXINGS FOR HOLDING CONDUITS, TAILS FOR ATTACHMENT TO THE END OF OPTICAL FIBRES AND THE LIKE, AND PARTS FOR ALL OF THE AFORESAID GOODS