Electric Water Heater
Description:
Patent for improvements to electric water heaters adapted for heating small bodies of water. The interior walls of the cylinders in the heating unit are perforated so that water can freely circulate through and between them.
Date:
February 7, 1922
Creator:
Stephens, Richard M.
Item Type:
Refine your search to only
Patent
Partner:
UNT Libraries Government Documents Department