File:US4013048 fig1-Color-rotated.png
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Summary
| Description |
English: drawing from the Expired patent US4013048 |
| Date | |
| Source | http://www.google.com/patents/US4013048 |
| Author | Daniel M. Reitz |
| Other versions |
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Licensing
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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 | 20:09, 10 August 2015 | | 1,758 × 936 (693 KB) | MichaelFrey | == {{int:filedesc}} == {{Information |description = {{en|drawing from the Expired patent US4013048 }} |date = 12. Dez. 1975 |source = http://www.google.com/patents/US4013048 |author = Daniel M. Reitz |Permission = |o... |
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