- patent number 2,765,800. Filed March 28, 1952. Patented October 9, 1956.
- ORANGE SIZER. PATENT NUMBER 466,817, JANUARY 12, 1892.
- Documenting the evolution of the Woodward governor through patents.
- 9
- A Gentleman Named Elmer.
- S4
- Patent number 438,876. Patented October 21, 1890.
- S5
- A Woodward patent history project.
- S3
- Page 3.
- WOODWARD SPEED GOVERNOR PATENT NUMBER 2,660,421.
- S6
- S7
- Page 2.