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Features

Wrought Iron Tube for Cable Railways

Softening and Hardening Cast Iron

The State of Manufacturing

Porcelain Headed Nails

Electric Door Keepers

Stove Pipe Connection

Canal Boat

Folding Egg Case

Device for Holding and Guiding the Fingers in Writing

Photographing a Flash of Lightning

Cut-Off Valve Gear

Improved Steam Hammer

A Whalebone Arch

The Isatis, or Arctic Fox

Cuff Holder

Watch Maker's Hand Vise and Ring Bender

Mechanical Inventions - June 7, 1884

Miscellaneous Inventions - June 7, 1884

Engineering Inventions - June 7, 1884

Departments

  • Letters

    Correspondence - June 7, 1884

  • Recommended

    New Books and Publications - June 7, 1884

  • Departments

    Business and Personal - June 7, 1884

  • Notes and Queries - June 7, 1884

  • Index of Inventions - June 7, 1884

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June 07, 1884

Complex Causes. Alternative Solutions.

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