- Page 2.
- Page 1.
- 3
- 5
- 4
- Elmer Woodward's first aircraft engine governor at the Smithsonian.
- Elmer Woodward's hydraulic engine governor at the Smithsonian.
- Elmer Woodward's aircraft propeller engine governor type PW-34.
- Elmer Woodward's 1934 aircraft engine governor.
- Patent 3,187,505. Page 3 of 3.
- 2
- Elmer Woodward patent number 2,204,640.
- 3,208,218. Page 3.
- 1
- At the Head of the Class...