- History of gear manufacturing saved!
- How do machine shops make parts?
- What is machining?
- American Machinist manufacturing history project.
- MADE IN THE U.S.A.
- Manufacturing history, circa 1922.
- WHO'S WHO...
- Machining history is fun!
- How a drill is manufactured back in 1922.
- Vintage machine shop manufacturing history project.
- Vintage machine shop manufacturing history project.
- WHO'S WHO...
- Design history of Herringbone Gears.
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