Features
Scientific Intelligence- October 7, 1871
Churn Dasher
Copson's Improved Corn Broom
Trade Mark Registrations.--Interesting Decision by the Hon. M. D. Leggett, Commissioner of Patents
Extension of Centering Machine Patent
What Constitutes Patentability in an Article of Manufacture.--Important Decision By the Commissioner of Patents
Parish's Improved Land Mark
Chemical Manures
Important Decisions by the Commissioner of Patents
Labor in England, and the International Working Men's Association
Trade Mark Registrations
Fair of the American Institute
The Ether Controversy
Answers to Correspondents- October 7, 1871
Editorial Summary- October 7, 1871
Recent American and Foreign Patents- October 7, 1871
Queries- October 7, 1871
Official List of Patents- October 7, 1871
Departments
- Letters
Correspondence- October 7, 1871
- Departments
Business and Personal- October 7, 1871
