Title:
Retractable cryogenic assembly
United States Patent 3372556
US Patent References:
Miniature refrigeration device
- - 2909908

Cooling head for small chambers
- - 3064451


Inventors:
Marvin, Waldman
Publication Date:
03/12/1968
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Assignee:
GEN DYNAMICS CORP
Primary Class:
62/51.200
International Classes:
F25D19/00; F41G7/22; F41G7/20