Features
The Crippled Condition of the Patent Office
Cape Flowers
An Accurate Automatic Time Recorder
An Improved Ore Sampling Device
Attachments for Swimmers' Use
An Improved Bolt Heading Machine
The Famine in India
A Revolving Shield for Cars
Stevens Institute of Technology
The Crowded Condition of the Patent Office
The Grand Canyon of the Colorado
The Western Union Time Ball Service
Departments
- Recommended
New Books and Publications- June 18, 1892
- Departments
Recently Patented Inventions- June 18, 1892
Index of Inventions- June 18, 1892
Notes and Queries- June 18, 1892
Business and Personal- June 18, 1892
