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Revival of Patent Nullification

The Annual Attack Upon Our Patent Laws

The Multicharge Cannon

Our Building Stone Supply

Waves Utilized to Pump Water

Improved Hopper Dredger

Dynamo Electric Igniting Machine

Fertilizer Distributer

Safety Loop for Harness Checks

Ax with Detachable Blade

Repairing Rails

New Steam Fire Engine

New Processes in the Manufacture of Beet Sugar

The Gibbon in the Berlin Zoological Garden

Science in Toys

Engineering Inventions - January 8, 1887

Agricultural Invention - January 8, 1887

Mechanical Invention - January 8, 1887

Miscellaneous Inventions - January 8, 1887

To Inventors - January 8, 1887


  • Recommended

    New Books and Publications - January 8, 1887

  • Departments

    Index of Inventions - January 8, 1887

  • Notes and Queries - January 8, 1887

  • Business and Personal - January 8, 1887

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