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Features

Opening of the World's Columbian Exposition at Chicago

The Electric Systems at the Columbian Exposition

The World's Columbian Exposition

Notes from the Worlds Columbian Exposition Chicago 1893

The Post Office of the Columbian Exposition

Electric Furnaces

An Improved Railway Roadbed

"Strip, the Electrician"

Curious Tree Growths

Locomotives of 1831 and 1893

A Steam Pressure and Water Level Recorder

The Broughton Quick Delivery Mixer

Edison's Improvement in the Transmission of Power

The Canned Food Industry

The Columbian Exposition Steamer Christopher Columbus

An Efficient Traveling Crane

To Inventors - May 13, 1893

Departments

  • Recommended

    New Books and Publications - May 13, 1893

  • Departments

    Recently Patented Inventions - May 13, 1893

  • Business and Personal - May 13, 1893

  • Notes and Queries - May 13, 1893

  • Index of Inventions - May 13, 1893

  • Patents - May 13, 1893

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May 13, 1893

Confronting Common Wisdom