File:US2172670-Figure 1-Color.png
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![File:US2172670-Figure 1-Color.png](https://upload.wikimedia.org/wikipedia/commons/thumb/8/87/US2172670-Figure_1-Color.png/572px-US2172670-Figure_1-Color.png)
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 15:02, 14 February 2015 | ![]() | 1,496 × 1,568 (683 KB) | commons>MichaelFrey | {{:User:MichaelFrey/US2172670}} {{Information |Description={{en|Bourke engine}}{{de|Kurbelschlaufenmotor}} |Source=https://www.google.com/patents/US2172670 |Date= 12. Mai 1936 |Author= Russell L. Bourke |Permission={{PD-US-patent-no notice}} |other_ver... |
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