File:Mathison-2684670.PNG
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Size of this preview: 425 × 600 pixels. Other resolutions: 170 × 240 pixels | 448 × 632 pixels.
Original file (448 × 632 pixels, file size: 105 KB, MIME type: image/png)
Summary
| Description |
English: Electropsychometer or bioelectronic instrument. Illustration in application for US Patent 2684670. |
| Date | |
| Source | https://www.google.com/patents/US2684670?dq=2684670 |
| Author | Volney Mathison |
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 | 19:17, 13 May 2015 | | 448 × 632 (105 KB) | wikimediacommons>Sfarney | {{Information |Description ={{en|1=Illustration in US Patent Application}} |Source =Google Patents |Author =Volney Mathison provided to US Patent Office |Date =1951 |Permission =public domain |other_versions = }} |
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