Title:
GAS-EXPANSION REFRIGERATOR
United States Patent 3431750

Inventors:
Lefranc, Marcel
Publication Date:
03/11/1969
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Assignee:
PHILIPS CORP
Primary Class:
62/51.200
Other Classes:
62/467
International Classes:
F25B9/02; F25J1/00; F25J1/00; F25J5/00
US Patent References:
3326015Gas liquefier




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