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发明名称
PIEZOELECTRIC CERAMIC MATERIAL
摘要
申请公布号
GB1237556(A)
申请公布日期
1971.06.30
申请号
GB19680047695
申请日期
1968.10.08
申请人
TDK ELECTRONICS CO., LTD.
发明人
分类号
C04B35/46;C04B35/48;C04B35/50;C04B35/51
主分类号
C04B35/46
代理机构
代理人
主权项
地址
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