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公开(公告)号：US2959792A
公开(公告)日：1960-11-15
申请号：US60651356
申请日：1956-08-27
Applicant: EMIL HAUGARD
Inventor： EMIL HAUGARD
IPC: A61G7/10
CPC classification number: A61G7/1036 , A61G7/1044 , A61G7/1046
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