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Improved Patent Horse Rake, The Broom Business, and More

Manufacture of Elastic Toys

Valuable Receipts

What May Be Seen at the Atlantic Docks

The Science of Steam Engineering

The New Atlantic Telegraph

The Safety Valve

An Important Crisis in the History of Newspaper Publishing

Slackness at the Patent Office

The Continental Telegraph

General Mitchell

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Patent Business in 1880 and 1862

Recent American Inventions

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Brown's Patent Automatic Letter-Box

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November 22, 1862

Music's Mysterious Power

Music's Mysterious Power

Emotional. Cognitive. Therapeutic.