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公开(公告)号：US2755639A
公开(公告)日：1956-07-24
申请号：US32075952
申请日：1952-11-15
Applicant: FEDOR STRAZNICKY
Inventor： FEDOR STRAZNICKY
CPC classification number: F25D29/003 , B60H1/3202 , B60N3/104 , F25B2341/0011 , F25D7/00
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