Features
Patent Punching and Shearing Machine
A List of Velocities
Gold Pen Making
Improved Flush Strap Hinge
Glasgow University Buildings
Photographic Hints
Scientific and Practical Information - September 21, 1872
Knitted Goods and Their Manufacture
Grosvenor's Self-Lubricating Loose Pulley
Wheel and Roller Sash Catch
Improved Road or Farm Gate
Meeting of the British Association—Address by a New York Herald Reporter—Livingstone in Africa
The Cincinnati Industrial Exposition - September 21, 1872
Car Coupling Dangers
Serious Marine Disasters—Improved Safety Appliances Greatly Needed
An Auction Sale of Models at the Patent Office
The Opening of the American Institute Fair
Table of Velocities
The American Association for the Advancement of Science
Extension of Patents. Value of the Invention.
Recent American and Foreign Patents - September 21, 1872
Practical Hints to Inventors - September 21, 1872
New Patent Law in Canada - September 21, 1872
Foreign Patents—A Hint to Patentees - September 21, 1872
Departments
- From the Editor
Answers to Correspondents - September 21, 1872
- Letters
Correspondence - September 21, 1872
- Departments
Business and Personal - September 21, 1872
Notes and Queries - September 21, 1872
Index of Inventions - September 21, 1872
