- Elmer Woodward's new hydraulic governor developed and patented in 1912.
- Elmer Woodward's new hydraulic governor. The full page advertisement from 1914.
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- mdp.39015009269963-seq 1
- 2
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- THE ELECTRIC LIGHT SYSTEM AT APPLETON, WISCONSIN.
- ILLUSTRATIONS
- CONTENTS
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- ILLUSTRATIONS. 2.
- 01
- The Upper Peninsula of Michigan. An inventory of historic engineering and industrial sites.