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发明名称
摘要
申请公布号
JPS5244439(B2)
申请公布日期
1977.11.08
申请号
JP19720084299
申请日期
1972.08.22
申请人
发明人
分类号
C04B35/46;H01B3/12;H01G4/12
主分类号
C04B35/46
代理机构
代理人
主权项
地址
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