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Features

Condition and Needs of the Navy

An Improved Draught Equalizer

A Chair for Use on the Sea Beach

Improved Foot Best for Radiators

An Improved Sash Holder

An Improved Grindstone Tool Holder

The New Additions to the Navy

An Improved Oyster Pail

Tare's Improved Wash Boiler

Sims-Edison Torpedo

Curiously Worn Gear Wheel

Secondary Battery

By Geo. M. Hopkins

An Improved Steam Engine

Maternal Instinct in Spiders

By M. L. Pike

Accident on The Housatonic Railroad

To Inventors- July 13, 1889

Departments

  • Recommended

    New Books and Publications- July 13, 1889

  • Departments

    Businesss and Personal- July 13, 1889

  • Recently Patented Inventions- July 13, 1889

  • Index of Inventions- July 13, 1889

  • Notes and Queries- July 13, 1889

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July 13, 1889

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