- QUALITY PAPER MADE IN THE U.S.A. NOT CHINA.
- WOODWARD GATE SHAFT TYPE WATER WHEEL GOVERNOR HISTORY.
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- WOODWARD GATE SHAFT TYPE WATER WHEEL GOVERNOR HISTORY.
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- Woodward Gate Shaft Type Governors. By Burt Bielfuss.
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- Elmer Woodward's first oil pressure water wheel governor operating manual, circa 1911.
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- Woodward Gate Shaft Type Governors. Page 1.
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- Woodward Gate Shaft Type Governors. Page 2.