Cathodic protection and underground metallic structure embodying the same
United States Patent 2565544
Inventors:
Harry, Brown Robert
Publication Date:
08/28/1951
Assignee:
ALUMINUM CO OF AMERICA
Other Classes:
204/196.150, 205/732, 204/196.210, 204/196.230
International Classes:
C23F13/02; C23F13/00