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Improved Washing Machine, Cheap Ice Pitcher, and more

Great Trial of Agricultural Implements--Mowers, Reapers, Etc--At Auburn, N. Y.

Testing a Turret

Self-Registering Barometer

Cause of the Failures of the Atlantic Cable

Chappell's Adjustable Toilet Glass

The Proposed Metric System

The Rightful Inventor the First to Make the Invention Useful

Variation in CForm Not Patentable

The Roberts Petroleum Torpedo

Biggs and Flinn's Hydrant

Experiments with Nitro-Glycerin

Are Iron Safes Safe?

Patent Claims

Issued from the U. S. Patent Office

Pitman's Animal Trap

Knoepke's Wash Basin


  • Departments


  • Notes and Queries

  • New Inventions

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