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Portable Drilling Machines, Bone Dust as a Fertilizer and more

Patent Infringement Cases

The Nebular Hypothesis

City of London Library and Museum

Electro Chemical Copying Press

Reservoir Palette

Engineering in Brussels

The Colorado Potato Beetle

How to Conduct New Scientific Investigations

The Rubber Tip Patent Case

Scientific and Practical Information - May 25, 1872

Canadian Patents

Improvement in Pumps

Builders' Hardware

East Indian Iron

Nature and Art

Death of an Indian Nobleman

Timely Hints for Patent Office Examiners

Recent American and Foreign Patents - May 25, 1872


  • 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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