Volume 18, Issue 7
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Features
Patent Office Report
Science Familiarly Illustrated
Answer to Correspondents
Recent American and Foreign Patents
Extension Notices
Commissioner of Patents' Report
Importance of a Commissioner
Turning a Movable Wheel Around a Fixed Wheel
Meretricious Ornamentation of Machinery vs Finish of Working Parts
Ships' Pumps Done Away With
Patents and Claims
Issued by the United States Patent Office