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Features

Traction Engine with Spring Wheels

The Patent Bills Before Congress

Finishing by Pressure

A Long Straight Edge

Items Concerning the Patent Bills

An Improved Lock

Improved Ratchet Drill

Improved Truck for Sugar Refineries

Sash-Cord Fastener and Window Sash

Science in Antiquity

Aspects of the Planets for April - 1884

An Improved Electric Railway Signal

A New Wind Engine

The Boat Bill Heron

A Combination Wardrobe

Miscellaneous Inventions - March 29, 1884

Agricultural Inventions - March 29, 1884

Engineering Inventions - March 29, 1884

Mechanical Inventions - March 29, 1884

Special - March 29, 1884

Departments

  • Letters

    Correspondence - March 29, 1884

  • Recommended

    New Books and Publications - March 29, 1884

  • Departments

    Business and Personal - March 29, 1884

  • Notes and Queries - March 29, 1884

  • Index of Inventions - March 29, 1884

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March 29, 1884