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公开(公告)号：US2786337A
公开(公告)日：1957-03-26
申请号：US46511154
申请日：1954-10-27
Applicant: LEITNER EQUIPMENT COMPANY
Inventor： SPRING THEODORE L
IPC: F25D23/12
CPC classification number: F25D23/12 , F25D2400/08
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