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Features

Electricity at the Great Exposition

The New U. S. Army Magazine Rifle

The Name of Robert Fulton for a War Steamer

Notes from the Worlds Columbian Exposition Chicago 1893

The Krupp Exhibits

Improved Triple Effect Evaporator

An Improved Dumbwaiter

Protecting Iron Work in Buildings from Fire

An Improved Suction Valve

An Improved Boiler Furnace

An Improved Car Coupling

The Racquet and Tennis Club of New York

The First War Steamer of the World

The Steam Man

To Inventors - April 15, 1893

Departments

  • Letters

    Correspondence - April 15, 1893

  • Departments

    New Books and Publications - April 15, 1893

  • Recently Patented Inventions - April 15, 1893

  • Business and Personal - April 15, 1893

  • Notes and Queries - April 15, 1893

  • Index of Inventions - April 15, 1893

  • Patents! - April 15, 1893

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April 15, 1893

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