Features
Inventors Protective National Union
Misrepresentation about Foreign Inventions
Strait's Saw Doctor
Collins' Patent Duplex Valve Motion
Beware of Putting Patent on an Unpatented Article
Carburetted Hydrogen
Large Ships—Ancient and Modern
Imponderable Agents.—No. 2
Measuring the Area of a Cirle
New India Rubber Case
Treatment of Trees in Cold Weather
List of Patent Claims
Trial about Selling a Patent
The Illustrated Weekly Record of the New York Exhibition of the Industry of all Nations
Improved Car Seat
India Rubber Beneath Rails
Elastic Oil Chamber
Former for Boot Leather
Hen's Nest
Taggart's Improvement in Flour Machinery
Machine for Tenoning Blind Slats
The New Rule of the Patent Office
Recording of Assignments-Property of Patents
Patent Office—Report of the Secretary of the Interior
Crystal Palace
Trial of Steam Engines in the Crystal Palace
Committees On Patents
Cornish Valves
Mechanics
The Scientific Dog
Taggart's Improved T-Square
Collyer's Patent Quartz Crusher
Photography on Linen
Departments
- From the Editor
To Correspondents
- Recommended
A Chapter of Suggestions, &C
