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发明名称
HALBLEITERKERAMIK
摘要
申请公布号
DE1941280(B2)
申请公布日期
1971.10.07
申请号
DE19691941280
申请日期
1969.08.13
申请人
发明人
分类号
C04B35/468;H01C7/02;(IPC1-7):C04B35/00
主分类号
C04B35/468
代理机构
代理人
主权项
地址
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