File:US250821-Figure 1.png
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Summary
| Description |
English: Heat Engine, Oscillating motor |
| Date | |
| Source | US Patent US250821-Figure 1, https://www.google.com/patents/US250821 |
| Author | Patent: Israel L. Landis, Coloring: MichaelFrey (talk) |
The drawing is colored in to make it easier
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The text and illustrations of US patents published before March 1, 1989 are in the public domain unless the patent text contains a specific notice that portions are copyrighted. See 37 CFR 1.71(d), 37 CFR 1.84(s)
The original patent contains no such notice, so its contents are in the public domain. Note: This only applies to images published before March 1, 1989. Patents published after that date are most likely copyrighted, unless in the public domain for another reason, such as {{PD-ineligible}}. |
File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 13:15, 14 October 2016 | | 1,865 × 1,677 (672 KB) | MichaelFrey | {{Information |Description ={{en|1=Heat Engine, Oscillating motor}} |Source =US Patent US250821-Figure 1, https://www.google.com/patents/US250821 |Author = Patent: Israel L. Landis, Coloring: MichaelFrey ([[User... |
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