Category:Samuel Hopkins (inventor)
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American inventor | |||||
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Date of birth | 9 December 1743 | ||||
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Date of death | 1818 | ||||
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Media in category "Samuel Hopkins (inventor)"
The following 2 files are in this category, out of 2 total.
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Hopkins-1791-patent-cropped.pdf 1,275 × 1,650, 3 pages; 424 KB
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United States Patent X1.png 2,640 × 2,090; 113 KB