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Features

Rare Monkeys

The Great Earthquake

Horse Collar

Steam Engine

Spring Lock

Locomotive Boiler Check Valve

Insulator for Electric Wires

Michel Eugene Chevreul

Improved Shovel

Stopper Fastener

The Galatea and Mayflower

A New Long Distance Telephone System

The Acme Automatic Safety Engine

An Inexpensive Air Pump

By Geo. M. Hopkins

Agricultural Inventions - September 18, 1886

Miscellaneous Inventions - September 18, 1886

Engineering Inventions - September 18, 1886

To Inventors - September 18, 1886

Departments

  • Letters

    Correspondence - September 18, 1886

  • Departments

    Business and Personal - September 18, 1886

  • Index of Inventions - September 18, 1886

  • Notes and Queries - September 18, 1886

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September 18, 1886