Switches and Crossings: Formulae for Ascertaining the Angles of Crossings, the Lengths of Switches, and the Distances of the Points of the Crossings and the Heels of the Switches from the Springing of
This is a reproduction of a book published before 1923. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the... This description may be from another edition of this product.
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