Skip to main content

Features

Device for Removing Seeds and Pits from Fruit, Telegraph Insulation, and more

Editorial Correspondence

Patent Telescopic Speaking Trumpet

A Flying Parachute

Martin's Patent Safety Swing

Another Optical Illusion

Locke's Self-Lighting Gas Burner

Pictorial Printing

The Construction of Watches

By H. F. Piaget

Manufacturing Mining, and Railroad Items

Recent American and Foreign Patents

Extension Notices

New Publications

Answers to Correspondents

The Polytechnic Club of the American Institute

Constructive Mechanics and Educational Means

The Wheel Question

To Inquiring Correspondents

Water Meters

Forging by Drops and by Hammering

Official Report of Patent and Claims

Issued by the United States Patent Office

Pending Applications for Reissues

Departments

  • Departments

    Business and Personal

  • Patents

Purchase To Read More

Already purchased this issue? Sign In to Access
Select Format
May 09, 1868

20% off for Memorial Day