Inventor Name
Seymour, Henry A.
Repository
Connecticut Historical Society
One Elizabeth Street at Asylum Avenue
Hartford, CT 06105
860-236-5621
http://www.chs.org/
Physical Description
ca. 60 items
Summary
Letters patent for an improvement in roofs and for improving the process of hardening steel plates. Also letters to his parents while he was employed at the U.S. Patent Office, 1872-1873