Low temperature refrigeration
United States Patent 2909906
Inventors:
Bocquet, Philip E.
Tung, Shao E.
Publication Date:
10/27/1959
Assignee:
CONSTOCK LIQUID METHANE CORP
Other Classes:
62/614, 62/513, 62/339, 62/116, 62/50.200
International Classes:
F25J1/02; F25J1/00