Testimony in behalf of the extension of the patent of Cyrus Chambers, Jr., for improvements in paper-folding machines, no. 23,445, granted April 5, 1859
Subtitle: hearing March 19, 1873, before the commissioner of Patents
By: [submitted by] Chas. F. Stansbury, attorney for the applicant.
Contributors: Stansbury, Charles F. d. 1882.; United States. Patent Office.; Joseph Meredith Toner Collection (Library of Congress)
Publisher: J.B. Lippincott & Co.
Published: 1873
Place of publication: Philadelphia
Language: eng
Number of pages: 172
Subjects: Chambers, Cyrus -- Trials, litigation, etc.; Patent extensions -- United States.; Folding machines -- United States -- Patents.
Genres: Trials, litigation, etc.; Patents.