Features
Agricultural Railways
Simple Slide Changer and Eclipser
English Railway Exhibit for Chicago
An Automatic Knife Grinder
An Improved Car Coupling
An Improved Sleeping Car
An Attachment for Beds
Improved Method of Stringing Pianos
An Improved Railway Block Signal
The New Engineering Building of Pennsylvania State College
Germ-Proof Water Filter and Cooler
The Cruiser Baltimore in Dry Dock
Boilers for the New Cruiser Cincinnati
Fountain of Saint George and the Dragon, Vienna, by Anton Dominik Bitter Von Fernkorn
Birds Which Nest in Cavities and Burrows
To Inventors - April 8, 1893
Departments
- Letters
Correspondence - April 8, 1893
- Recommended
New Books and Publications - April 8, 1893
- Departments
Recently Patented Inventions - April 8, 1893
Business and Personal - April 8, 1893
Notes and Queries - April 8, 1893
Index of Inventions - April 8, 1893
Patents! - April 8, 1893
