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BS 452:1932 | 1 Jan 1932 | BSI Knowledge
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BS 452:1932
Tractive armature direct-current neutral track relays
Published:
1 Jan 1932
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Withdrawn:
Date not available
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Product Details
Descriptors
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ICS Codes
29.120.70 Relays
45.040 Materials and components for railway engineering
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ISBN
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Publisher
BSI