File:Francis Hopkinson Spring-Block 1793.png
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Captions
Captions
drawing of Spring-Block by Francis Hopkinson
Summary
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| Description |
English: drawing of Spring-Block by Francis Hopkinson, awarded with the Magellanic Premium in 1790 |
| Date | |
| Source | Francis Hopkinson: Description of a Spring-Block, Designed to Assist a Vessel in Sailing. In: Transactions of the American Philosophical Society 3, 1793, pp. 331–333, doi:10.2307/1004885. |
| Author | Francis Hopkinson, 1737–1791 |
Licensing
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This work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 70 years or fewer. This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929. |
| This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights. | |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 14:33, 29 October 2019 | | 999 × 1,331 (757 KB) | Jean-Hyacinthe (talk | contribs) | User created page with UploadWizard |
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