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The Johnson Pneumatic Tube

Opening of the New London Bridge

The Electric Execution of Criminals

The Incandescent Electric Lamp Patent

The Raisin Industry of California

An Improved Door Bolt

An Improved Feathering Paddle Wheel

An Improved Freight Car Door

An Improved Planter

An Improved Spindle Wharve

William B. Dunning

Luminous Fountains for Dining Tables

The Pits and Domes of Mammoth Cave

By H. C. Hovey

Measurement of Resistance

To Inventors- October 19, 1889


  • Letters

    Correspondence- October 19, 1889

  • Recommended

    New Books and Publications- October 19, 1889

  • Departments

    Business and Personal- October 19, 1889

  • Notes and Queries- October 19, 1889

  • Recently Patented Inventions- October 19, 1889

  • Index of Inventions- October 19, 1889

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