- POWER PLANT ENGINEERING
- Hydraulic Turbines for Electric Generators page 2.
- Hydraulic Turbines for Electric Generators.
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- Plant of The James Leffel & Company.
- A vintage machine shop manufacturing history project.
- POWER PLANT ENGINEERING
- A vintage machine shop manufacturing history project.
- WOODWARD GOVERNOR COMPANY Engineering Data for Governor Installation.
- A vintage powerhouse history project.
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