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- Patent number 1,476,914. Sheet 2.
- Patent number1,476,914. Page 1.
- Patent number 1,476,914. Page 2.
- Patent number 1,476,914. Page 3.
- Turbine water wheel patent number 341,577. Sheet 1 of 3.
- Patent number 341,577. Sheet 2.
- Patent number 341,577. Sheet 3.
- Patent number 341,577. 1
- Patent number 341,577. 2
- Patent number 341,577. 3.
- Woodwardology on the world wide web.
- The Woodwatd IC diesel engine governor history, circa 1987.
- An application of a Woodward compensating type water wheel governor.
- An application of a Woodward compensating type water wheel governor.
- ALLIS-CHALMERS COMPANY HISTORY.