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Features

Grain Binder Attachment to Harvesters

Mining Schools and Colleges

Rights of Purchasers of Patented Articles

The Vienna Exposition--Appointment of a New Commissioner

Experiments on the Strength of Materials

The New Philadelphia Steamships

The New York Post Office

Modern Printing Machinery and Appliances--How a Daily Newspaper is Made

About Tea

Iron Bridge Construction

The Wonders of the Egg--IV

The Sigl Mitrailleuse

Scraper for Household Uses

Simple Hand Stamp

Rag Cutting Engine

New Steam Roller

Stevens Institute Lectures--Fluorescence

By Henry Morton

Decisions of the Courts

United States Circuit Court--Nineteenth District, California

Recent American and Foreign Patents - May 31, 1873

Answers to Correspondents - May 31, 1873

Copyrights

Communications Received - May 31, 1873

Departments

  • Departments

    Correspondence - May 31, 1873

  • Business and Personal - May 31, 1873

  • Notes and Queries - May 31, 1873

  • Index of Inventions - May 31, 1873

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