Features
The Patent Bills Before Congress
Finishing by Pressure
A Long Straight Edge
Items Concerning the Patent Bills
An Improved Lock
Improved Ratchet Drill
Improved Truck for Sugar Refineries
Sash-Cord Fastener and Window Sash
Science in Antiquity
Aspects of the Planets for April - 1884
An Improved Electric Railway Signal
A New Wind Engine
The Boat Bill Heron
A Combination Wardrobe
Miscellaneous Inventions - March 29, 1884
Agricultural Inventions - March 29, 1884
Engineering Inventions - March 29, 1884
Mechanical Inventions - March 29, 1884
Special - March 29, 1884
Departments
- Letters
Correspondence - March 29, 1884
- Recommended
New Books and Publications - March 29, 1884
- Departments
Business and Personal - March 29, 1884
Notes and Queries - March 29, 1884
Index of Inventions - March 29, 1884
