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Creation date / 2019 / June
- The Brattleboro Hydro-electric power plant.
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- The American Water Wheel Company history.
- A advertisement from 1901.
- Rockford, Illinois history, circa 1900.
- Rockford, Illinois history, circa 1900.
- HYDRAULIC MOTORS AND TURBINE HISTORY SERIES.
- HYDRAULIC MOTORS AND TURBINE HISTORY SERIES.
- Drawing of a hydro-electric power house.
- Figure 176.
- Page 26. A Paccard Hydraulic Turbine Water Wheel Governor. A Swiss made hydraulic turbine water wheel governor.
- Figure 173.
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- NIAGARA FALLS AREA MAP.