Home 55756
- 28
- umn.31951p008294272-seq 201
- PREFATORY NOTE.
- One of the first 400 Hz constant speed drives developed for aviation gas turbine engines.
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- The Stevens Point Beverage Company, circa 1937.
- Circa 1950.
- chi.087169445-seq 23
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- Tapping small holes in unalloyed plutonium.
- Vintage machine shop manufacturing history project.
- How a drill is manufactured back in 1922.
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- trumpcat058