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Patents -- United States

Patents -- United States

2 books

Books about Patents -- United States

Cover of Improvement in Fire-Arms and in the Apparatus Used Therewith - United States Patent Office Application

Improvement in Fire-Arms and in the Apparatus Used Therewith - United States Patent Office Application

by Colt, Samuel

English 70h 40m read

Cover of The Classification of Patents

The Classification of Patents

by United States. Patent Office

English 378h 56m read

Science fiction (3,150) Short stories (2,975) Fiction (1,964) Adventure stories (1,527) Historical fiction (1,003) Conduct of life -- Juvenile fiction (967)