cabinets adapted to hold signalling apparatus; cabinets adapted to hold scientific apparatus; cabinets adapted to hold scientific instruments; cabinets adapted to hold measuring instruments; cabinets adapted to hold signalling instruments; cabinets adapted to hold optical instruments; cabinets adapted to hold weighing apparatus; cabinets adapted to hold surveying instruments; cabinets adapted to hold testing instruments; cabinets adapted to hold detecting apparatus; cabinets adapted to hold detecting instruments; electric fuse boxes; electrical fuse boxes; electric swithboxes; terminal boxes for electric conductors; branch boxes [electricity]; junction boxes [electricity]; junction boxes [electricity] for electric wires; junction boxes for electric wires; built-in electrical boxes; electrical distribution boxes; distribution boxes [electricity]; battery boxes; power distribution boxes; distribution boxes for electrical power; terminal boxes; electrical switch cabinets; electric switch boxes; switch boxes [electricity]; switchboxes [electricity]; electric switchboards; switch boxes; switchboxes; switchboards; telephone switchboards; electrical switchboards; automatic switchboards; telecommunications switchboards; housings for switching apparatus