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Features

Glafcke's Improvement in Prison Construction

Agricultural Railways

English Railway Exhibit for Chicago

Simple Slide Changer and Eclipser

By Geo. M Hopkins

An Automatic Knife Grinder

An Improved Sleeping Car

An Improved Car Coupling

An Attachment for Beds

Germ-Proof Water Filter and Cooler

The New Engineering Building of Pennsylvania State College

An Improved Railway Block Signal

Improved Method of Stringing Pianos

The Cruiser Baltimore in Dry Dock

Boilers for the New Cruiser Cincinnati

Fountain of Saint George and the Dragon, Vienna, by Anton Dominik Bitter Von Fernkorn

Birds Which Nest in Cavities and Burrows

By Morris Gibbs

To Inventors - April 8, 1893

Departments

  • Letters

    Correspondence - April 8, 1893

  • Recommended

    New Books and Publications - April 8, 1893

  • Departments

    Recently Patented Inventions - April 8, 1893

  • Business and Personal - April 8, 1893

  • Notes and Queries - April 8, 1893

  • Index of Inventions - April 8, 1893

  • Patents! - April 8, 1893

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April 08, 1893

See the World from a Different Perspective

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