- Vintage machine shop manufacturing history project.
- U.S.A. patent number 7,114,336
- The Saga of a Patent Model.
- The Saga of a Patent Model.
- The Saga of a Patent Model.
- The oldwoodward.com web-site theme is "WE LOVE MECHANICAL THINGS"
- The American patent office.
- Sheet 8 of 8
- Sheet 7 of 8
- Sheet 6 of 8
- Sheet 5 of 8
- Sheet 4 of 8
- Sheet 3 of 8
- Sheet 2 of 8
- Sheet 1 of 8