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Features

Improved System of Rolling Car Wheels, Manufacturing and Tempering Sword Blades in India

Prosperity of Our Manufactures

Champagne and its Production

Plans for Cooling and Ventilating Buildings by Morin and Regnault

The Foot Lathe

Two Kinds of Electricity

Miscellaneous Summary

Barnum's Button

Rogers's Belt Stretcher

Polytechnic Association of the American Institute

Patent-Office Decisions

Effect of Sanitary Regulations

Recent American Patents

Administration of the Patent Office

Hare's Oil Cup

An English Tank Engine

Our Position on the Expansion Question

Death of Professor Mapes

Concerning Belts

A Large Steam Cylinder

Patent Claims

Best Mode of Introducing Inventions

Patent Agency Office

Rendering Cloth Uninflammable

Special Notices

Departments

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    Correspondence

  • Notes and Queries

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January 20, 1866