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Gerard's Alternating Current Machine

Petroleum--The Old in the New

Sugar and Fodder, in One

The American Association for the Advancement of Science

By H. C. Hovey

Combined Trunk and Wardrobe

New Boring Machine

Velocipede Sleigh

Wire Rope Towage

Aspects of the Planets for September

Compound Double Acting Horizontal Engine

Ephemera, or Day Flies

Mechanical Inventions

Agricultural Inventions

Miscellaneous Inventions

Engineering Inventions

Communications Received


  • Departments


  • Recent Inventions

  • Notes and Queries

  • New Books and Publications

  • Business and Personal

  • Index of Inventions

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