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公开(公告)号：US2510974A
公开(公告)日：1950-06-13
申请号：US57781745
申请日：1945-02-14
Applicant: ANNA HAINLEN
Inventor： ANNA HAINLEN
IPC: B60C5/20
CPC classification number: B60C5/20 , Y10T152/10612
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