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- PELTON WATER WHEEL COMPANY AD FROM1909.
- Largest Impulse-Type Waterwheels Feature High-Head Turbines.
- PANAMA CANAL HYDROELECTRIC DEVELOPMENT.
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- THE PELTON WATER WHEEL COMPANY ADVERTISEMENT FROM 1903.
- THE DESIGN OF TENGENTIAL WATER WHEELS, PAGE 1.
- THE DESIGN OF TENGENTIAL WATER WHEELS PAGE 2.
- THE DESIGN OF TENGENTIAL WATER WHEELS PAGE 4.
- TANGENTIAL WATER WHEEL EFFICIENCIES PAGE 11.
- THE DESIGN OF TENGENTIAL WATER WHEELS PAGE 3.
- TANGENTIAL WATER WHEEL EFFICIENCIES
- ABNER DOBLE WATER WHEEL COMPANY.
- TANGENTIAL WATER WHEEL EFFICIENCIES PAGE 3.