- Woodward Governor Company's Water Wheel Governor Bulletin 1A.
- Vintage Woodward Water Wheel Governor Bulletin Number 1-A
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- TYPES OF WATER WHEEL GOVERNORS.
- Whiting Paper Mill
- IMPULSE TURBINES BY SMITH. BULLETIN 138.
- Elmer Woodward's new oil pressure relay valve water wheel governor ca 1912.
- Vintage Hydroelectric Power Plant history.