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发明名称
摘要
申请公布号
BE646748(A)
申请公布日期
1964.08.17
申请号
BED646748
申请日期
1964.04.20
申请人
发明人
分类号
A47C21/04;A61F7/02;A61F7/10
主分类号
A47C21/04
代理机构
代理人
主权项
地址
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