BS 689:1936

Railway mechanical signalling apparatus (signal posts semaphore signals, fittings and connections, and point connections and fittings.).

NORMA vydaná dňa 20.7.1936

The information about the standard:

Designation standards: BS 689:1936
Note: NEPLATNÁ
Publication date standards: 20.7.1936
Approximate weight : 300 g (0.66 lbs)
Country: British technical standard
Kategória: Technické normy BS