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发明名称
ERREGERSCHALTUNG FUER EINEN PIEZOELEKTRISCHEN KRISTALL
摘要
申请公布号
DE2141643(B2)
申请公布日期
1978.01.12
申请号
DE19712141643
申请日期
1971.08.19
申请人
发明人
分类号
B06B1/02;G08B3/10;G10K9/122;H04R17/00;(IPC1-7):G10K9/12
主分类号
B06B1/02
代理机构
代理人
主权项
地址
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