Skip to main content

Features

More About the A. A. A. S

For the Advancement of Science

Magnetization of Pocket Watches at the Electrical Exhibition

Trace Holder and Detacher

Current Wheel

Combination Tool for Carpenters

A Double Baking Pan

Improved Machine for Tonguing and Grooving Boards

Steam Boiler

Improved Mechanical Movement

The Telephone - September 20, 1884

Transmitting Power from a Central Station

The Northeast Coast of New Guinea

Decisions Relating to Patents, Trade Marks, Etc.

Engineering Inventions - September 20, 1884

Mechanical Inventions - September 20, 1884

Miscellaneous Inventions - September 20, 1884

Agricultural Inventions - September 20, 1884

Departments

  • Letters

    Correspondence - September 20, 1884

  • Departments

    Index of Inventions - September 20, 1884

  • Notes and Queries - September 20, 1884

  • Business and Personal - September 20, 1884

Purchase To Read More

Already purchased this issue? Sign In to Access
Select Format
September 20, 1884

See the World from a Different Perspective

Subscribe to Scientific American MIND