Features
Driving by Friction
Congress and the Patent Office
Labels and Trademarks
The Greely Expedition
Variations of Speed
Compound and Self-Acting Plug Valve for Wash Basins
Horse Power
Improved Oil Cup
Metallurgic Furnace
Improved Elevator
Bending Machine
Screw Tap
Well Bucket
Conical Press for Treating Beet Pulp
A Practical Method of Estimating Distances
Automatic Wave Lubricating Life Buoy
Engineering Inventions - July 26, 1884
Mechanical Inventions - July 26, 1884
Agricultural Inventions - July 26, 1884
Miscellaneous Inventions - July 26, 1884
Departments
- Letters
Correspondence - July 26, 1884
- Recommended
New Books and Publications - July 26, 1884
- Departments
Business and Personal - July 26, 1884
Notes and Queries - July 26, 1884
Index of Inventions - July 26, 1884
