- A Prime Mover Control Conference history project.
- 1957 Prime Mover Control Conference.
- 32nd Annual Prime Mover Control Conference in 1968.
- Prime Mover Control Conference January 1975.
- A Prime Mover Control Conference history project.
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- Page 2. The Dear Gang letter from 55 years ago in October 1968.
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- Page 2. "Dear Gang" letter from 66 years ago in October 1957.
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