"Improvements in firearms and devices used with them. "Application to the United States Patent Office" is a document presented by Samuel Colt, a famous American inventor and gun manufacturer. This book explores new possibilities in the development of firearms and accessories that can be used with them. This material may be useful for patent-eligible inventions that aim to improve the functionality and reliability of firearms used in various industries, including military, police and civilian applications. The book contains detailed descriptions of inventions, diagrams, technical drawings and other materials that can be useful to inventors, designers and experts in the field of weapons.