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发明名称
摘要
申请公布号
NL7100242(A)
申请公布日期
1971.07.12
申请号
NL19710000242
申请日期
1971.01.08
申请人
发明人
分类号
A47L9/00;(IPC1-7):A47L9/00
主分类号
A47L9/00
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代理人
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