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Features

Another New Patent Bill

An Electric Insulator for Boilers and Condensers

An Improved Shingling Gauge

An Hydraulic Air Compressor

An Improved Pipe Wrench

Siphon for Domestic Uses

A Sacramental Altar for Home Use

Lighthouse Illumination

The New Boats of the Hoboken Ferry Company, New York

Mantidae

Departments

  • Recommended

    New Books and Publications- June 11, 1892

  • Departments

    Business and Personal- June 11, 1892

  • Recently Patented Inventions- June 11, 1892

  • Notes and Queries- June 11, 1892

  • To Inventors- June 11, 1892

  • Index of Inventions- June 11, 1892

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June 11, 1892

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