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Features

The New Law for Brakes and Car Couplers

The Telephone and the Berliner Patent

An Improved Phosphate Washer

Bridges on the Transandine Railway

An Inexpensive Window Awning

A Locomotive Stone Breaker

An Improved Wrench

American Improved Locomotive Valve

How Sunken Vessels are Raised

Improvements in Boston Harbor

The Great Exposition Entrances to the Fisheries and the Mining Buildings

Gold and Silver Refining from Jewelers' Sweepings

Automatic Photography

Departments

  • Recommended

    New Books and Publications- March 18, 1893

  • Departments

    Recently Patented Inventions- March 18, 1893

  • Business and Personal- March 18, 1893

  • Notes and Queries- March 18, 1893

  • To Inventors- March 18, 1893

  • Index of Inventions- March 18, 1893

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March 18, 1893

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