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Rule serving to the distribution of the rails short and long on the inner row of tracks of iron in a curve for the blanks of 8, 10, 12 and 18 meters in use to the airline p m - l. -.
Rule serving to the distribution of the rails short and long on the inner row of tracks of iron in a curve for the blanks of 8, 10, 12 and 18 meters in use to the airline p m - l. -.