Subject-matter index of patents for inventions issued by the United States Patent Office from 1790 to 1873, inclusive
by United States. Patent Office
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Subject-matter index of patents for inventions issued by the United States Patent Office from 1790 to 1873, inclusive. (1976)
Subject-matter index of patents for inventions issued by the United States Patent Office from 1790 to 1873, inclusive. (1976)
Arno Press
Arno Press
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