File:US3683212-Zoltan jet nozzle.png
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Summary
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Steve Zoltan, US Patent US3683212, in public domain
Licensing
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 | The text and illustrations of US patents are in the public domain in the United States unless the patent text contains a specific notice that portions are copyrighted.[1][2][3]
The original patent contains no such notice, so its contents are in the public domain in the United States. |
 | This media file is either in the public domain or published under a free license, and contains no inbound file links. If this media file is useful, then it should be transferred to the Wikimedia Commons. If this media is not useful, then please propose it for deletion or list it at files for discussion. |
File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 19:36, 30 January 2021 | | 2,320 × 3,408 (117 KB) | James K McMahon (talk | contribs) | Steve Zoltan, US Patent US3683212, in public domain |
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