File:Hartley-US-Pat 1,356,7631.png
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| Description |
English: oscilator6 |
| Date | |
| Source | Own work |
| Author | Radomir Sebek |
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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}}. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 12:22, 24 November 2009 | | 800 × 600 (77 KB) | Radomir Sebek (talk | contribs) | {{Information |Description={{en|1=oscilator6}} |Source={{own}} |Author=Radomir Sebek |Date=24.11.2009 |Permission= |other_versions= }} |
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