Electric batteries, battery chargers, junction boxes; electric doorbells and parts and fittings therefor; cables, wires, cable trunking, cable conduits, parts and fittings for all the aforesaid goods; carpenters rules, circuit breakers; fuses and fuse boards; fuse wire; sockets, plugs; switches; plumb bobs, plumb lines, rulers, measuring instruments; aerials and extension cables, all for televisions and for radios; all included in Class 9.;