Features
More Engineers Needed for the Navy
The Columbia, the New Commerce Destroyer
An Extensible Electric Light Support
An Improved Rotary Engine
A Readily Adjustable Camera Stand
Improved Cross-Cutting Saw
A Coin Holding and Delivering Device
A Quick and Sure Chicken Beheader
New Fire Alarms
A Metallic Bookcase
Improvements in Shapers
Four Hundred Horse Power Mill Engine
Securing Propeller Blades to the Hub
A Simple Gas Meter Connection
The Triple-Screw War Ship Columbia
To Inventors
Departments
- Departments
Recently Patented Inventions
Business and Personal
Notes and Queries
Index of Inventions
Patents
