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经营范围
发明名称
摘要
申请公布号
JPS5550992(B1)
申请公布日期
1980.12.22
申请号
JP19720021388
申请日期
1972.03.01
申请人
发明人
分类号
C09B44/20;(IPC1-7):C09B44/20
主分类号
C09B44/20
代理机构
代理人
主权项
地址
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