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发明名称
PIEZOELEKTRISCHE KERAMIK
摘要
申请公布号
DE1646525(B2)
申请公布日期
1972.03.02
申请号
DE19671646525
申请日期
1967.10.16
申请人
发明人
分类号
C04B35/46;C04B35/48;C04B35/50;C04B35/51;(IPC1-7):C04B35/00
主分类号
C04B35/46
代理机构
代理人
主权项
地址
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