Method of annealing steel
United States Patent 2188155

Inventors:
Peter, Payson
Publication Date:
01/23/1940
View Patent Images:
Download PDF 2188155 pdf       PDF help
Export Citation:
Click for automatic bibliography generation
Assignee:
CRUCIBLE STEEL CO AMERICA
Primary Class:
148/659
International Classes:
C21D1/32; C21D1/26