File:Accordina drawing from US Patent 2461806.png

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Summary

Description
English: Drawing from U.S. Patent 2,461,806 describing André Borel's improved "chromatic harmonicon" with chromatic button accordion keyboard. This instrument, a type of melodica, is better known as the accordina.
Date
Source U.S. Patent 2,461,806 for "Chromatic Harmonicon" (issued Feb. 15, 1949)
Author André Borel

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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current15:51, 16 May 2013Thumbnail for version as of 15:51, 16 May 20131,305 × 1,083 (42 KB)AnotherOnymousUser created page with UploadWizard
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