Process for Hardening Copper.
Description:
Patent for a process of hardening copper to prevent bending and scaling of the metal. The process involves heating copper to a high temperature (1370 degrees Fahrenheit) and then subjecting it to continual pressure through hammering it until cold.
Date:
February 24, 1920
Creator:
Beckham, Dewitt T.
Item Type:
Refine your search to only
Patent
Partner:
UNT Libraries Government Documents Department