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Summary
| Description |
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
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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}}. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 15:51, 16 May 2013 | | 1,305 × 1,083 (42 KB) | AnotherOnymous | User created page with UploadWizard |
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