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Features

The Shapley Engine

Prison Reform

Exhaust Steam for Heating Purposes

A Possible Improvement in House Heating

Mechanical Aesthetics and Practical Men

Scientific and Practical Information - November 28, 1874

To Underground Railway, New York City

The National Academy of Science

A Novel Milk Can

Improved Pinking Iron

Improved Hatchet

Biddle's Hydraulic Jack

The Late John Laird

Recent American and Foreign Patents - November 28, 1874

The Fair of the American Institute

Answers to Correspondents - November 28, 1874

Communication Received - November 28, 1874

Canadian Patents - November 28, 1874

Departments

  • Letters

    Correspondence - November 28, 1874

  • Departments

    Business and Personal - November 28, 1874

  • Index of Inventions - November 28, 1874

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November 28, 1874

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