File:US29502 18600807 cropped.png
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Summary
| Description |
English: Cropped version of the single figures page from United States Letters Patent No. 29,502 "Piano" by Herman Lindeman for the "cycloid" piano manufactured and sold by Lindeman & Sons, New York, showing plan views of the assembled piano and its internal structure |
| Date | |
| Source | United States Patent Office |
| Author | Herman Lindeman |
Licensing
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This media file is in the public domain in the United States. This applies to U.S. works where the copyright has expired, often because its first publication occurred prior to January 1, 1929, and if not then due to lack of notice or renewal. See this page for further explanation.
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This image might not be in the public domain outside of the United States; this especially applies in the countries and areas that do not apply the rule of the shorter term for US works, such as Canada, Mainland China (not Hong Kong or Macao), Germany, Mexico, and Switzerland. The creator and year of publication are essential information and must be provided. See Wikipedia:Public domain and Wikipedia:Copyrights for more details.
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 18:27, 2 July 2014 | | 1,608 × 2,576 (51 KB) | Mireut | User created page with UploadWizard |
File usage
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