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- A Great Western Power Company's Woodward type D Compensating Governor.
- Great Western Power Company's Woodward type D Compensating Governors.
- A Wisconsin hydroelectric power plany history project.
- A "for the Love of Wisconsin" history project.
- APPLETON WISCONSIN HISTORY.
- A Woodward Governor Company advertisement from 1919.
- 3
- Elmer Woodward's vertical compensating type D water wheel governor.
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