- ALLIS-CHALMERS MANUFACTURING COMPANY HISTORY.
- A Hydro Power Industry history project.
- A Hydro Power Industry history project.
- A vintage Hydro Power Industry advertisement project.
- A vintage Hydro Power Industry project.
- Largest Impulse-Type Waterwheels Feature High-Head Turbines.
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- A vintage machine shop manufacturing history project.
- The first Woodward oil pressure hydraulic water wheel governor from patent number 1,106,434.
- Another vintage Woodward Governor Company governor application found in the year 2021.
- A vintage Hydroelectric Power advertisement project.
- Lombard governed from end to end.
- A Woodward VR(vertical relay) type hydraulic water wheel governor on display at the Midway Village Museum in Rockfor, Ill.
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- A Holyoke Machine Company's Water Wheel Governor advertisement from 1914.