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Features

The Levitt-Muller Electric Lighting System and Multiple Circuit Dynamo

A Recent Aurora

Freight Car Couplers

The War in Egypt

Frey's Plumber's Coupling

Improved Freight Car

Novel Door Securer

Spring Steam Hammers

Improved Gate

Compound Nest of the C. Palustris and the A. Phœniceus

By Daniel C. Beard

Electrical Invention

Agricultural Inventions

Engineering Inventions

Mechanical Inventions

Miscellaneous Inventions

Communications Received

Departments

  • Departments

    Correspondence

  • Recent Inventions

  • Index of Inventions

  • Business and Personal

  • Notes and Queries

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August 19, 1882

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