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Features

Notes of Patent Decisions of the Courts

Curiosities of Suicide

Amending (?) the Patent Laws

A Common Ailment.--Malarial Poisoning

How to True Up a Crank Pin

The Proposed Amendments to the Patent Laws

More News From the Sun

Horizontal Compound Engine

Improved Pneumatic Dredging Tube

Improved Protected Non-Recoil Gun

Communications

The Curious Life-History of Our Blister Beetles

By C. V. Riley

The Corrugated Iron Air Bridge and Fuel Economizer

Combination Lathe, Scroll Saw, Etc

Proposed Balloon Voyage to the North Pole

The Duck-Billed Platypus

Machines that Hear and Write

John William Draper

Automatic Shaft Oiler

Communications Received

Wants and Business Inquiries

Departments

  • Departments

    Notes and Queries

  • Business and Personal

  • Index of Inventions

  • Patents

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December 15, 1877

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