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The "Maine" Inquiry

Railroad to the Yukon

Side Doors or End Doors on Railroad Cars

The Opium Industry in America

By C. P. Holder

An Efficient Tire Bolt Wrench

Discharge Nozzle for Fire Engines

An Automatic Acetylene Gas Generator

Submarine Mining and Torpedo Warfare

Apparatus for Measuring the Heights Reached by Balloons

Reconstruction of the Dismal Swamp Canal

A Device for Fastening Nuts

A Horned Cockerel

By Edwin G. Dexter

To Inventors - March 5, 1898


  • Letters

    Correspondence - March 5, 1898

  • Departments

    The Heavens in March 1898

  • Recently Patented Inventions - March 5, 1898

  • Notes and Queries - March 5, 1898

  • Business and Personal - March 5, 1898

  • Index of Inventions - March 5, 1898

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