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The Inventor of the Automatic Gun

"United States Patent Laws"

Bishop Potter on Labor and Machinery

An Advance in the Electrical Equipment of Steam Railroads

The Berliner Telephone Transmitter Patent Sustained

A Convenient Window Desk

An Efficient Latch for Heavy Doors

A Simple Bicycle Holder

A Novel Music Leaf Turner

A Shorthand Typewriter

The Leak in the New Dry Dock, Brooklyn Navy Yard

The Torpedo Boat Porter

Harvard Observatory in Peru

By S. I. Bailey

The Columbia Motor Carriage

An Arc Lamp that Operates in Any Position

Departments

  • Recommended

    New Books, Etc. - May 22, 1897

  • Departments

    Index of Inventions - May 22, 1897

  • Notes and Queries - May 22, 1897

  • Recently Patented Inventions - May 22, 1897

  • Business and Personal - May 22, 1897

  • Patents - May 22, 1897

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May 22, 1897

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