Improved quenching method
United States Patent 2877866
Inventors:
Mathis, Clyde H.
Polk, Walter B.
Publication Date:
03/17/1959
Assignee:
PHILLIPS PETROLEUM CO
Other Classes:
95/188, 95/155, 165/95, 261/117, 165/134.100, 422/207
International Classes:
F28F19/00