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公开(公告)号:US2805103A
公开(公告)日:1957-09-03
申请号:US42440154
申请日:1954-04-20
Applicant: CASIMER JOVAIS
Inventor: CASIMER JOVAIS
IPC: A47L3/02 , E04G3/18
CPC classification number: A47L3/02 , E04G3/18