Features
Soda Ash
An Improved Alarm Lock
An Improved Means of Channel Protection
Low Water Alarm and Flue Cleaning Device for Steam Boilers
The Victor Safety Bicycle
A Portable Lemonade Holder and Glass Washer
An Improved Key Fastener
An Improved Atomizer
A Nut and Washer for Vehicle Axles
An Improved End Gate for Wagons
Mountains of the Moon
An Improved Bridge Flooring
An Improved Camera
Automatic Recording Signal for Railroads
Queen's New Triple Plate Toepler-Holtz Machine
To Inventors- April 5, 1890
Departments
- Letters
Correspondence- April 5, 1890
- Recommended
New Books and Publications- April 5, 1890
- Departments
Recently Patented Inventions- April 5, 1890
Business and Personal- April 5, 1890
Notes & Queries- April 5, 1890
Index of Inventions- April 5, 1890
