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- INGERSOLL ADVERTISEMENT.
- Massive harringbone gears added to the governor collection.
- Some of Woodward's largest oil pump gears manufactured for hydraulic governor control systems.
- WOODWARD HERRINGBONE TYPE GEARS
- Arrow shows the herringbone gears.
- Vintage machine shop manufacturing history project.
- 7
- 4
- WHO'S WHO...
- WHO'S WHO...
- MADE IN THE U.S.A.
- American Machinist manufacturing history project.
- INGERSOLL AD.
- A vintage machine shop manufacturing history project.
- INGERSOLL ADVERTISEMENT. 3