File:Reed-trench terracing patent diagram.png
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Summary
| Description |
English: Diagram from the patent for Reed-trench terracing by Giorgina Reid. |
| Date | |
| Source | US patent 3412561 |
| Author | Giorgina Reid / USPTO |
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}}. |
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 01:35, 28 August 2024 | | 2,320 × 3,408 (60 KB) | Legoktm | Uploaded a work by Giorgina Reid / USPTO from [https://patents.google.com/patent/US3412561A/ US patent 3412561] with UploadWizard |
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