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- EMD locomotive history.
- Table of contents continued.
- Caterpiller diesel engine governor applications.
- Constant Speed Drive for Boeing 727, Sundstrand Corporation - Museum of Science and Industry (Chicago) - DSC06323
- INGERSOLL MIILLING MACHINE COMPANY HISTORY.
- Diesel engine governor patent number 2,039,507.
- EMD locomotive history.
- CATERPILLAR TRACTORS, CIRCA 1922.
- A vintage machine shop manufacturing history project.
- Woodward Governor Company's type IC diesel engine governor.
- Diesel engine progress.
- Diesel engine governor patent number 2,039,507.
- What is a prime mover?
- Elmer Woodward's first diesel engine governor system.
- Prime Mover Controls.