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BS 561:1934

Alternating-current line relays (2-element, 3-position) for railway signalling purposes..

STANDARD published on 23.7.1934

English -
Print design (288.20 USD)

The information about the standard:

Designation standards: BS 561:1934
Note: WITHDRAWN
Publication date standards: 23.7.1934
Approximate weight : 300 g (0.66 lbs)
Country: British technical standard
Category: Technical standards BS