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    Improved Drilling Machine, Carbonization of Illuminating Gas

    Donald Mckay's Defense of the Navy

    Improvement in Photography

    The Geology of Petroleum

    The Engines of the “Dictator”

    Interesting English Patents

    Recent American Patents

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    Extension of Patents--For Whose Benefit they are Granted

    War a Stimulant to Invention

    Location of Steam Gages and Indicators

    Light Wanted

    Fine Tools

    Making Sirup from Corn

    Second Trial of the 1,000-Pounder

    The Rocks in Which Petroleum is Found

    Purifying Gas by Oxide of Iron

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    Patent Claims

    Issued From The United States for the week ending November 1, 1864 Reported official for the scientific American

    To Our Readers

    Reynold's Bobbin

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    November 12, 1864

    See the World from a Different Perspective

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