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and Its Evolution Into the Mech,
The Walschaert Locomotive Valve Gear: A Practical Treatise on the Locomitive Valve Actuating Mechanism Originally Invented by Egide Walschaerts,
with ... Designers
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Read The Walschaert Locomotive Valve Gear: A Practical Treatise on the Locomitive Valve Actuating Mechanism Originally Invented by Egide Wa...
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