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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

Public domain 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/TimeThumbnailDimensionsUserComment
current19:17, 13 May 2015Thumbnail for version as of 19:17, 13 May 2015448 × 632 (105 KB)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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