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Scientific American

January 22, 1870

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Official List of Patents- January 15, 1870

Issued by the United States Patent Office. For the week ending Jan. 11, 1870. Reported Officially for the Scientific American.

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This article was originally published with the title “Official List of Patents” in Scientific American Magazine Vol. 22 No. 4 (January 1870), p. 67
doi:10.1038/scientificamerican01221870-67

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