BS 519:1950

Specification for tractive armature direct current neutral-polar line relays for railway signalling.

NORMA vydána dne 14.7.1950

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The information about the standard:

Designation standards: BS 519:1950
Note: NEPLATNÁ
Publication date standards: 14.7.1950
The number of pages: 14
Approximate weight : 42 g (0.09 lbs)
Country: British technical standard
Kategorie: Technické normy BS