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Creation date / 2021 / Week 9
- Elmer Woodward's new horizontal compensating water wheel governor, circa 1902.
- Elmer Woodward's horizontal compensating type F water wheel governor.
- The Pierce Governor Company history.
- The Pierce Governor Company history.
- The Pierce Governor Company history.
- The Pierce Governor Company history.
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- 46B
- 1915
- 1915 2
- 1915 3
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