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发明名称
PIEZOELEKTRISCHER KERAMIKSTOFF
摘要
申请公布号
DE1802768(B2)
申请公布日期
1971.07.29
申请号
DE19681802768
申请日期
1968.10.12
申请人
发明人
分类号
C04B35/46;C04B35/48;C04B35/50;C04B35/51;(IPC1-7):C04B/
主分类号
C04B35/46
代理机构
代理人
主权项
地址
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