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Features

Another New Patent Bill

An Electric Insulator for Boilers and Condensers

An Hydraulic Air Compressor

An Improved Shingling Gauge

A Sacramental Altar for Home Use

Siphon for Domestic Uses

An Improved Pipe Wrench

Lighthouse Illumination

The New Boats of the Hoboken Ferry Company, New York

Mantidae

Departments

  • Recommended

    New Books and Publications- June 11, 1892

  • Departments

    Notes and Queries- June 11, 1892

  • Business and Personal- June 11, 1892

  • Recently Patented Inventions- June 11, 1892

  • Index of Inventions- June 11, 1892

  • To Inventors- June 11, 1892

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June 11, 1892

Help Us Reforest the Mississippi River Valley