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Improved Patent Mowing Machine

British Association for the Advancement of Science--Address

The Fair of the American Institute

Miscellaneous Summary

A Novel Steam Engine

The Teeth--Dental Caries

Effusion of Gases--Atmolysis

How English Cutlery is Made

A Noticeable Feature of the Fair

American Copper

Patent Office Report for 1861

Harbor Defense

Keying Wheels on Shafts

Patent Claims

Issued from the United States Patent-Office

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Recent American Patents

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  • A Way to Show Water Running Up a Hill

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    Notes and Queries

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October 03, 1863

Reanimate Your Brain

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