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The Electric Tachyscope

An Important Invention Wanted

The National Maritime Exhibition

The Purity of the New Water Supply for New York

An Improved Dough Mixer and Kneader

An Improved Fireplace and Heater

An Improved Lamp Extinguisher

Dry Battery

An Improved Watch Case Pendant

An Improved Refrigerator

Improved Shield for Firemen or Stokers

An Improved Boot or Shoe Heel

An Improved Fire Escape

Ten Ton Traveling Crane

An Improved Road Grader


  • Letters

    Correspondence- November 16, 1893

  • Departments

    Notes and Queries- November 16, 1893

  • Business and Personal- November 16, 1893

  • Recently Patented Inventions- November 16, 1893

  • To Inventors- November 16, 1893

  • Index of Inventions- November 16, 1893

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November 16, 1889

Of Shamrocks and Science

Happy St. Patrick’s Day