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Features

Moving a Bridge by Rail

The Legal Status of Railroad Employes

Position of the Planets in April

A Recent Improvement in Buckles

An Independent Lathe Chuck

An Improved Camera Lucida

An Improved Car Axle Box

A Tellurian for the Home and School

The Oldest Musical Instruments

An Improved Harrow

Improved Rubber Toys

An Electric Heater for Cars

The Telautograph

Factory Driving by Electricity

The New Steel Steamer El Rio

Dust and Sand Figures on Membranes

By T. O'conor Sloane

To Inventors - April 1, 1893

Departments

  • Letters

    Correspondence - April 1, 1893

  • Recommended

    New Books and Publications - April 1, 1893

  • Departments

    Business and Personal - April 1, 1893

  • Recently Patented Inventions - April 1, 1893

  • Index of Inventions - April 1, 1893

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