Scientific American Magazine
Volume 25, Issue 15You are currently logged out. Please sign in to download the issue PDF.
Features
Anderson's Stone Dresser
Scientific Intelligence- October 7, 1871
Copson's Improved Corn Broom
Churn Dasher
What Constitutes Patentability in an Article of Manufacture.--Important Decision By the Commissioner of Patents
Extension of Centering Machine Patent
Trade Mark Registrations.--Interesting Decision by the Hon. M. D. Leggett, Commissioner of Patents
Parish's Improved Land Mark
Chemical Manures
Labor in England, and the International Working Men's Association
Important Decisions by the Commissioner of Patents
Trade Mark Registrations
The Ether Controversy
Fair of the American Institute
Answers to Correspondents- October 7, 1871
Editorial Summary- October 7, 1871
Queries- October 7, 1871
Recent American and Foreign Patents- October 7, 1871
Official List of Patents- October 7, 1871
Departments
Correspondence- October 7, 1871
Business and Personal- October 7, 1871
