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Features

The Hudson River Tunnel

Government Contracts Undesirable

Elias Loomis

An Automatic Ash Sifter

An Improved Window Ventilator

An Improved Game Apparatus

An Improved Governor

An Improved Astronomical Mirror

An Improved Elevator Alarm

The Boynton Bicycle Engine

The Paris Exhibition

Departments

  • Departments

    Business and Personal- September 7, 1889

  • Recently Patented Inventions- September 7, 1889

  • Notes and Queries- September 7, 1889

  • Index of Inventions- September 7, 1889

  • To Inventors- September 7, 1889

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September 07, 1889

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