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Labor Saving at Panama

Our National Wastefulness

Commerce on the Great Lakes

Logging in the Northwest

By Raymond M'Bride

“Knots” in the Rings of Saturn

By S. A. Mitchell

The Clifden Station of the Marconi Wireless Telegraph System

The Largest Single Office Building in the World

The Quadruple Turbine Steamship “Mauretania”

Improved Ditching Plow

Water Elevator for Windmills

Patent Department - November 23, 1907

A Faucet Connection for Generating Electricity

Automatic Coupling for Brake Pipes


  • Letters

    Correspondence - November 23, 1907

  • Departments

    Index of Inventions - November 23, 1907

  • Recently Patented Inventions - November 23, 1907

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