Features
Natural Gas in Indiana
The New Commissioner of Patents
Conduit for Underground Conductors
Warner's Improved Dry Plate Holder
Feed Water Regulator
A Novel Picture Exhibitor
Take-Up and Let-off Mechanism for Looms
Improved Car Coupling
Improved Saddletree and Check-Hook
Sinking the Foundation for the New Harlem River Bridge
A Novel Game Board
The New 110-Ton Gun
Combination Tool for Squaring, Leveling, Etc.
Science in Toys
The Decoration of a Home
Braun's Electro-Dynamic Air Ship
Engineering Inventions - April 16, 1887
Miscellaneous Inventions - April 16, 1887
Agricultural Inventions - April 16, 1887
To Inventors - April 16, 1887
Departments
- Recommended
New Books and Publications - April 16, 1887
- Departments
Business and Personal - April 16, 1887
Notes and Queries - April 16, 1887
Index of Inventions - April 16, 1887
