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Llewellyn V Ludy
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Locomotive Boilers and Engines
Llewellyn V Ludy, American Technical Society · Creative Media Partners, LLC
180 sayfa · 2018
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Steam engine indicators and valve gears
Llewellyn V. Ludy · American technical society
104 sayfa · 1918
Indicators for steam-engines. [from old catalog] / Steam-engines / Valve gears
