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Features

Portable Drilling Machines, Bone Dust as a Fertilizer and more

Patent Infringement Cases

The Nebular Hypothesis

City of London Library and Museum

Reservoir Palette

Electro Chemical Copying Press

How to Conduct New Scientific Investigations

Engineering in Brussels

The Rubber Tip Patent Case

The Colorado Potato Beetle

Improvement in Pumps

East Indian Iron

Canadian Patents

Builders' Hardware

Scientific and Practical Information - May 25, 1872

Nature and Art

Timely Hints for Patent Office Examiners

Death of an Indian Nobleman

Recent American and Foreign Patents - May 25, 1872

Departments

  • From the Editor

    Answers to Correspondents - May 25, 1872

  • Letters

    Correspondence - May 25, 1872

  • Recommended

    New Books and Publications - May 25, 1872

  • Departments

    Business and Personal - May 25, 1872

  • Notes and Queries - May 25, 1872

  • Index of Inventions - May 25, 1872

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May 25, 1872

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