12 Railway rolling stock and their parts and fittings; bodies of railway rolling stock; seats of railway rolling stock; railway couplings; undercarriages for railway cars; bogies for railway rolling stock; doors of railway rolling stock; buffers for railway rolling stock.
37 Construction; construction of rail tracks; maintenance of rail tracks; consultancy in relation to construction of rail tracks; repair and maintenance of automobiles; remodeling of railway rolling stock; repair or maintenance of railway rolling stock; cleaning of railway rolling stock.
42 Designing of railway rolling stock; designing of safety devices for railway signals; designing of railroad tracks (including road beds, track beds, railroad ties and rails); designing of machines, apparatus, instruments (including their parts) or systems composed of such machines, apparatus and instruments, all used for railroads; testing or research of railway rolling stock and their parts and fittings; testing or research of railroad tracks (including road beds, track beds, railroad ties and rails); testing or research of machines and instruments used for railroads.
