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Features

Prizes—The Last Call

Inventors Protective National Union

Misrepresentation about Foreign Inventions

Strait's Saw Doctor

Collins' Patent Duplex Valve Motion

Beware of Putting Patent on an Unpatented Article

Carburetted Hydrogen

Large Ships—Ancient and Modern

Imponderable Agents.—No. 2

Measuring the Area of a Cirle

New India Rubber Case

Treatment of Trees in Cold Weather

List of Patent Claims

Trial about Selling a Patent

The Illustrated Weekly Record of the New York Exhibition of the Industry of all Nations

Improved Car Seat

India Rubber Beneath Rails

Elastic Oil Chamber

Former for Boot Leather

Hen's Nest

Taggart's Improvement in Flour Machinery

Machine for Tenoning Blind Slats

The New Rule of the Patent Office

Recording of Assignments-Property of Patents

Patent Office—Report of the Secretary of the Interior

Crystal Palace

Trial of Steam Engines in the Crystal Palace

Committees On Patents

Cornish Valves

Mechanics

The Scientific Dog

Taggart's Improved T-Square

Collyer's Patent Quartz Crusher

Photography on Linen

Departments

  • From the Editor

    To Correspondents

  • Recommended

    A Chapter of Suggestions, &C

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December 24, 1853

Complex Causes. Alternative Solutions.