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The Exportation of American Manufactures

New Jersey Mines and Minerals

White Nickel Bronze

New York Academy of Sciences

Tornado in Missouri

The National Academy of Science

The Edison Lamp Tests

The Commissionership of Patents

The Tunnel Under the Hudson River

Crime in Bengal

Simple Telephone Transmitter

By Geo. M. Hopkins

Improved Knife Handle

The Great Southern Comet

What is the Time of Jupiter's Rotation?

Engineering Invention - May 8, 1880

New Life Preserver

New Boiler Cleaner

Railway Cremation

Insane Ingenuity

Sea Beans

By A. W. Roberts

Improved Rail

Miscellaneous Inventions - May 8, 1880

Mechanical Inventions - May 8, 1880

Improved Windmill

Agricultural Inventions - May 8, 1880


  • Departments

    New Inventions - May 8, 1880

  • Notes and Queries - May 8, 1880

  • Business and Personal - May 8, 1880

  • Index of Inventions - May 8, 1880

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May 08, 1880

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