File:Braun Radiant Energy US750429.png
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Summary
| Description |
English: Ferdinand Braun's Radiant Energy Patent US750429 |
| Date | |
| Source | U.S. Patent 750,429 |
| Author | Ferdinand Braun |
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 | 04:01, 4 January 2011 | | 746 × 1,118 (19 KB) | Reddi~commonswiki |
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