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公开(公告)号：US2812952A
公开(公告)日：1957-11-12
申请号：US56948756
申请日：1956-03-05
Applicant: FRIEDOLF KAMILA
Inventor： FRIEDOLF KAMILA
IPC: B62B1/22
CPC classification number: B62B1/22 , B62B2203/02
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