File:US4202297-detail-second-position.png
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US4202297-detail-second-position.png (731 × 548 pixels, file size: 51 KB, MIME type: image/png)
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Summary
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English: Two-stroke engine having variable exhaust port timing |
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| Source | https://patents.google.com/patent/US4202297A/en |
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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 | 17:26, 20 January 2022 | | 731 × 548 (51 KB) | MichaelFrey (talk | contribs) | =={{int:filedesc}}== {{Information |description={{en|1=Two-stroke engine having variable exhaust port timing}} |date=1978-06-19 |source=https://patents.google.com/patent/US4202297A/en |author=Inventor * Yuji Oku * Yasuharu Tsuyama Current Assignee * Yamaha Motor Co Ltd |permission= |other versions= <gallery> File:US4202297-drawings-page-3-fig2.png US4202297-fig2-detail.png US4202297-detail-second-position.png </gallery> }} =={{int:license-header}}== {{PD-US-patent-no notice}} [[Category:Y... |
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