Features
The Nullification of the Patent Laws
A Blow at the Industries of Indiana
Magnetism in Cities
Working Cold Wrought Iron
Restoration of American Shipbuilding
Blotter
Process of and Apparatus for Blocking Ice
Improved Double Mould Board Plow
Engine Lubricator
Hose Reel
The Strength of Lead Pipes
Soemmering's Electric Telegraph
The Chimpanzee and Koolokamba
Nut Lock
Insurance - January 19, 1884
Aetna Insurance Company of Hartford
Agricultural Inventions - January 19, 1884
Engineering Inventions - January 19, 1884
Mechanical Inventions - January 19, 1884
Miscellaneous Inventions - January 19, 1884
Departments
- Letters
Correspondence - January 19, 1884
- Departments
Business and Personal - January 19, 1884
Notes and Queries - January 19, 1884
Index of Inventions - January 19, 1884
Patents
