BS 469:1939

Specification for electric lamps for railway signalling.

NORMA vydaná dňa 1.1.1952

The information about the standard:

Designation standards: BS 469:1939
Note: NEPLATNÁ
Publication date standards: 1.1.1952
Approximate weight : 300 g (0.66 lbs)
Country: British technical standard
Kategória: Technické normy BS