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Features

Electro-Horticulture

The Migration of the Great American Desert

The Mining Debris Problem in California

American Industries, No. 40

Oleomargarine--How it is Made.

Automatic Hub Mortising Machine

New Car Coupling

Miscellaneous Inventions

A New Writing Instrument

New Steak-Tendering Mallet

New Oatmeal Machine

Mechanical Inventions

Boiler Plate Testing Machine

The Elephant Calf and its Mother

Improvement in Potato Diggers

Departments

  • Departments

    Recent Inventions

  • Business and Personal

  • Index of Inventions

  • Notes and Queries

  • Patents

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April 24, 1880

Think Outside the Gift Box