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BS 581:1950
M00000516
New product
BS 581:1950 Specification for electrically-driven point-operating machines for railways
standard by BSI Group, 12/13/1950
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Full Description
Machines for points, derailers, movable diamonds and facing-point or fouling bars. Hand-generator machines. Different requirements for use with bull-head and flat bottom switches.Cross References:
BS 170
BS 442