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Features

Hydraulic Lift Bridge

Contraction of Steel

Cutting Leading Screws

Device for Transmitting Motion

Balanced Slide Valve

Pneumatic Lock

Improved Thill Coupling

Device for Securing Box Covers

The Harden Hand-Grenade Fire Extinguisher

Index for Journals, Letter Files, Etc

Shaft Coupling

Machine for Grinding Indigo and Ultramarine

New Automatic Cut-Off Agricultural Engine

Attitudes After Death

By C. E. Brown-Sequard

Telephone Support

Engineering Inventions - July 12, 1884

Agricultural Inventions - July 12, 1884

Miscellaneous Inventions - July 12, 1884

Mechanical Inventions - July 12, 1884

Departments

  • Letters

    Correspondence - July 12, 1884

  • Recommended

    New Books and Publications - July 12, 1884

  • Departments

    Notes and Queries - July 12, 1884

  • Index of Inventions - July 12, 1884

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July 12, 1884

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