Features
Herat
Do We Work Too Much?
Changes in the Patent Office
Adjustable Window Bead Fastener
Improved Mine Railway
Double Bolt Sash Lock
Improved Sled
Cold Iron Punch
Rowing Apparatus
Double-Acting Water Wheel
An Electrical Standard for Measuring Light
Dr. Ochorowicz's Loud-Speaking Telephone
Monumental Nests
Pruning Ornamental Trees
Agricultural Inventions - April 25, 1885
Miscellaneous Inventions - April 25, 1885
Engineering Inventions - April 25, 1885
Departments
- Departments
Notes and Queries - April 25, 1885
Business and Personal - April 25, 1885
Index of Inventions - April 25, 1885