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发明名称
摘要
申请公布号
JPS4723391(Y1)
申请公布日期
1972.07.27
申请号
JP19700114852U
申请日期
1970.11.20
申请人
发明人
分类号
(IPC1-7):A47L9/20;A47L9/10
主分类号
(IPC1-7):A47L9/20
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