Title:
Indicator system for sacrificial anodes
United States Patent 3037920
Inventors:
Vixler, Leslie F.
Publication Date:
06/05/1962
Assignee:
PATROL VALVE CO
Other Classes:
205/733, 204/196.070, 204/404, 204/196.150, 204/412
International Classes:
C23F13/22; C23F13/00