File:US patent 228904.png
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Summary
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| Description |
English: Drawing included in the US patent 228904, the first known patent for the Kampfe brothers safety razor, filed on May 8, 1880 by brothers Frederic Kampfe and Otto Kampfe. Granted on June 15, 1880. |
| Date | May 8, 1880 |
| Source | https://patents.google.com/patent/US228904A |
| Author | Frederic Kampfe & Otto Kampfe |
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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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 08:37, 20 November 2023 | | 1,732 × 2,860 (60 KB) | Veikk0.ma (talk | contribs) | Uploaded a work by Frederic Kampfe & Otto Kampfe from https://patents.google.com/patent/US228904A with UploadWizard |
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