File:Pat1740079.pdf
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Pat1740079.pdf (file size: 285 KB, MIME type: application/pdf)
Thomas Edison Patent: "Extraction of Rubber from Plants" (1929)
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| Date/Time | Dimensions | User | Comment | |
|---|---|---|---|---|
| current | 11:19, 22 January 2011 | (285 KB) | Rasmus (talk | contribs) | Thomas Edison Patent: ''"Extraction of Rubber from Plants"'' (1929) |
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