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- TANGENTIAL WATER WHEEL EFFICIENCIES PAGE 16.
- TANGENTIAL WATER WHEEL EFFICIENCIES PAGE 17.
- TANGENTIAL WATER WHEEL EFFICIENCIES PAGE 18.
- TANGENTIAL WATER WHEEL EFFICIENCIES PAGE 19.
- PELTON WATER WHEELS 1903.
- PELTON WATER WHEELS
- ABNER DOBLE WATER WHEEL COMPANY.
- ABNER DOBLE WATER WHEEL COMPANY. 2.
- The Doulbl Ellipsoidal Water Wheel Buckets.