Features
The Smoke Nuisance
An Eraser for Use on Blackboards
An Improved Fumigator
An Improved Lawn Cleaner
Improved Steam Boiler
A Device for Manipulating Doors and Windows
A Register and Recorder for Revolving Shafts
An Improved Safety Indicator for Elevators
An Improved Lifting Truss Girder
An Improved Mechanical Movement
Daisies and Thistles Proscribed by Law
The New German Armored War Ship Siegfried
Photographic Notes- September 20, 1890
Departments
- Letters
Correspondence- September 20, 1890
- Departments
Notes & Queries- September 20, 1890
To Inventors- September 20, 1890
Business and Personal- September 20, 1890
Recently Patented Inventions- September 20, 1890
Index of Inventions- September 20, 1890
