Features
Trade Marks
German Patent Law
Home News by Way of the Sun
A New Dodge
How to Build a Windmill
A Street Railway Improvement Wanted
Scientific and Practical Information - April 17, 1875
New Mode of Slaughtering Cattle
Extermination of the Phylloxera
Improved Bottle Stopper
Giffard's Railway Car
A Novel Design for a British Channel Tunnel
Practical Mechanism Number XXI
Improved Bolt Cutter
Tomlinson's Improved Chimney Cowl
Improved Dinner Pail
The Kagu
The Grayhound
Decisions of the Courts
A Prize Plan for a Fireproof House
Recent American and Foreign Patents - April 17, 1875
Communications Received - April 17, 1875
Departments
- Letters
Correspondence - April 17, 1875
- Recommended
New Books and Publications - April 17, 1875
- Departments
Notes and Queries - April 17, 1875
Business and Personal - April 17, 1875
Index of Inventions - April 17, 1875
