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Electro-Motors on Trunk Lines

S. J. Perry

William Jarvis Mcalpine

The World's Fair

Photographic Notes- March 1, 1890

An Improved Cable Grip

Hydraulic Pressure Gold Chlorination Process

An Improved Printer's Galley

An Improved Brake Staff Support

An Improved Car Coupling- March 1, 1890

An Improved Window Shade Exhibitor

An Improved Butter Worker

An Improved Check Hook for Harness

An Improved Hoe or Rake

An Improved Machine for Stacking Hay, Ensilage, Etc.

An Improved Hedge Fence

The New Boston Fire Boat "Engine No. 31."

The Artesian Wells of Riverside, Cal

The Armadillo

Scientific American Building Edition- March 1, 1890


  • From the Editor

    To Inventors- March 1, 1890

  • Letters

    Correspondence- March 1, 1890

  • Reviews

    New Books and Publications- March 1, 1890

  • Departments

    Recently Patented Inventions- March 1, 1890

  • Business and Personal- March 1, 1890

  • Notes & Queries- March 1, 1890

  • Index of Inventions- March 1, 1890

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