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- World Class Controls for the 21st century.
- Woodward Company propeller governor applications since 1934
- A vintage Elmer Woodward governor control mechanism in Irl Martin's office.
- A Woodward worker testing hundreds of propeller governors in the 1950's.
- GOVERNOR CONTROL MECHANISM PATENT NUMBER 2,527,867.
- GOVERNOR CONTROL MECHANISM PATENT NUMBER 2,527,867.
- GOVERNOR CONTROL MECHANISM PATENT NUMBER 2,527,867.
- GOVERNOR CONTROL MECHANISM PATENT NUMBER 2,527,867.
- GOVERNOR CONTROL MECHANISM PATENT NUMBER 2,527,867.
- GOVERNOR CONTROL MECHANISM PATENT NUMBER 2,527,867.
- GOVERNOR CONTROL MECHANISM PATENT NUMBER 2,527,867.
- GOVERNOR CONTROL MECHANISM PATENT NUMBER 2,527,867.
- GOVERNOR CONTROL MECHANISM PATENT NUMBER 2,527,867.
- GOVERNOR CONTROL MECHANISM PATENT NUMBER 2,527,867.
- GOVERNOR CONTROL MECHANISM PATENT NUMBER 2,527,867.