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- WOODWARD ACTUATOR GOVERNOR. SERIAL NUMBER 11,940. CA. 1941. PAGE 4.
- Niagara Falls area factory history.
- WOODWARD ACTUATOR GOVERNOR CONTROL, SERIAL NUMBER 11,940. JULY 29, 1941. PAGE 3
- WOODWARD ACTUATOR GOVERNOR TYPE UG 20,000 - CHASSIS HC 29. SERIAL NUMBER 11,940, CIRCA 1941. PAGE 1.
- This original photo was used for a 1908 Woodward water wheel governor catalogue.
- img178
- PATENT NUMBER 680,745
- SN 5185. 9-5-1945 PAGE 2.
- CIRCA 1908.
- PATENT NUMBER 680,745
- WOODWARD GOVERNOR COMPANY CATALOGUE FROM 1908.
- DICK COLE'S NOTES ON WOODWARD HISTORY.
- The James Leffel Company letter, circa March 10, 1919.
- PATENT NUMBER 680,745
- img179