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发明名称
摘要
申请公布号
JPS48946(Y1)
申请公布日期
1973.01.11
申请号
JP19690042249U
申请日期
1969.05.08
申请人
发明人
分类号
A47L9/14;A47L9/20;(IPC1-7):A47L9/14
主分类号
A47L9/14
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