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发明名称
摘要
申请公布号
JPS4742518(Y1)
申请公布日期
1972.12.22
申请号
JP19690071775U
申请日期
1969.07.30
申请人
发明人
分类号
C10B1/10;C10B15/00;C10B53/00;C10B53/02;(IPC1-7):C10B53/00
主分类号
C10B1/10
代理机构
代理人
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地址
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