BS 689:1957

Railway mechanical signalling equipment.

NORMA vydaná dňa 29.3.1963

The information about the standard:

Designation standards: BS 689:1957
Note: NEPLATNÁ
Publication date standards: 29.3.1963
Approximate weight : 300 g (0.66 lbs)
Country: British technical standard
Kategória: Technické normy BS