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Thumbnail for Subject-matter index (made from titles only) of patents of invention, from March 2, 1617 to October 1, 1852. Part 2 N-W

Subject-matter index (made from titles only) of patents of invention, from March 2, 1617 to October 1, 1852. Part 2 N-W

Woodcroft Bennet1854
Books, Manuscripts
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