Features
French Export Wine
Panama Canal Difficulties
Improved Vehicle Brake
Lovell's Nail Making Machine
Improved Drag Saw
Improved Oiler
A Simple Floor Clamp
Adjustable Lambrequin, Curtain, and Shade Support
Friction Clutch Pulley
Improved Coffee Pot
Small Dynamo Electric Machine
A Convenient Escritoire
New Bench Drill
Apparatus for Illustrating the Law of the Reflection of Light
A Novel Electrical Experiment
Microscopic Notes
How to Make Statuary in Paper
Engineering Inventions - May 7, 1887
Miscellaneous Inventions - May 7, 1887
Agricultural Inventions - May 7, 1887
Mechanical Invention - May 7, 1887
Departments
- Departments
Index of Inventions - May 7, 1887
Business and Personal - May 7, 1887
