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Railway mechanical signalling apparatus (signal posts semaphore signals, fittings and connections, and point connections and fittings.).
STANDARD published on 20.7.1936
Designation standards: BS 689:1936
Note: WITHDRAWN
Publication date standards: 20.7.1936
SKU: NS-75459
Approximate weight : 300 g (0.66 lbs)
Country: British technical standard
Category: Technical standards BS
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Latest update: 2026-03-02 (Number of items: 2 264 418)
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