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Features

Smokeless Gunpowder

Stocking the Hudson With Salmon

Patent Office Salaries

An Improved Car Coupling- April 12, 1890

An Improved Printer's Galley

An Improved Drainage and Sewerage System

An Improved Dough Kneader

A Machine for Distributing Poison on Plants

The Lovell Diamond Safety Bicycle

Compressed Air Passenger Cars

An Improved Cotton Cultivator

A Device for Attaching Cost or Price Tickets

An Improved Stove-Pipe Shelf

An Improved Check Punch

An Improved Pencil Sharpener and Holder

The Cyclone of March 26, 27, and 28

To Inventors- April 12, 1890

Departments

  • Recommended

    New Books and Publications- April 12, 1890

  • Departments

    Business and Personal- April 12, 1890

  • Recently Patented Inventions- April 12, 1890

  • Notes & Queries- April 12, 1890

  • Index of Inventions- April 12, 1890

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April 12, 1890

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