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Features

Bell's Photophone

The Prall System of Heating

The Restoration of Our Commercial and Naval Marine

Patent Royalties on Shoe Machinery

Electro-Brass Plating

Engineering Inventions - January 1, 1881

Automatic Governor for Waste Water Pipes

Cremation Temple

Mechanical Inventions

The Growth of Large Elms

Agricultural Inventions

Novel Road Engine

Improved Hinge

Scallops

By A. W. Roberts

Departments

  • Departments

    Recent Inventions - January 1, 1881

  • Notes and Queries - January 1, 1881

  • Business and Personal - January 1, 1881

  • New Books and Publications - January 1, 1881

  • Index of Inventions - January 1, 1881

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