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Features

Description of the Suspension Bridge at Cincinnati

Improved Steam Oven

How to Make Coffee

By Charles A. Seely

Production of Odoriferous Oils

A Novel Mode of Treating Coffee

Legislation About Patents in Congress

When Strikes Will Succeed

Experiments in Aerial Navigation

Supplement

Baird's Simplification of the Screw Engine

Novelties in Invention

Wages in Pittsburg

New Publications

The Decimal System of Weights and Measures

Miscellaneous Summary

Patent Claims

Issued from the U. S. Patent Office

To Our Readers

Lamb's Dish-Stand

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    New Inventions

  • Correspondence

  • Notes and Queries

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Why Do Facts Fail?

Why Do Facts Fail?

Deconstructing Denial