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公开(公告)号：US1546841A
公开(公告)日：1925-07-21
申请号：US52007921
申请日：1921-12-05
Applicant: KUHN JACOB R
Inventor： KUHN JACOB R
IPC: F25B39/04
CPC classification number: F25B39/04 , F25B2339/041
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