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An Introduction to the Helicopter
| Author: | Klemin, Alexander |
|---|---|
| Year: | 1925 |
| Document Type: | N/A |
| Series: | NACA Technical Memorandums |
| Report Number: | NACA-TM-340 |
| Link: | https://digital.library.unt.edu/ark:/67531/metadc65067/ |
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