File:Joke Buzzer Patent.png
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Summary
| Description |
English: Diagram of the first joke buzzer, later joy buzzer, from United States patent application 1845735, by Soren Sorensen Adams. |
| Date | |
| Source | http://www.google.com/patents?id=AM9GAAAAEBAJ&pg=PA1 |
| Author | Soren Adams |
Licensing
|
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 | 22:06, 1 October 2009 | | 768 × 1,047 (173 KB) | GRuban | {{Information |Description={{en|1=Diagram of the first joke buzzer, later w:joy buzzer, from United States patent application 1845735, by w:Soren Sorensen Adams.}} |Source=http://www.google.com/patents?id=AM9GAAAAEBAJ&pg=PA1 |Author=Soren Adam |
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