54092157
9781379233534
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Wood, William Wallace is the author of 'Walschaert and Other Modern Radial Valve Gears for Locomotives : A Practical Treatise on the Locomitive Valve Actuating Mechanism Invented by Egide Walschaerts, with the History of Its Development and Its Evolution into the Mechanically Correct', published 2018 under ISBN 9781379233534 and ISBN 1379233534.
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