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发明名称
PIEZOELEKTRISCHER SCHALLGEBER
摘要
申请公布号
DD252500(A1)
申请公布日期
1987.12.16
申请号
DD19860293722
申请日期
1986.08.19
申请人
INSTITUT FUER NACHRICHTENTECHNIK,DD
发明人
KASZYNSKI,GERT,DD
分类号
H04R17/00;(IPC1-7):H04R17/00
主分类号
H04R17/00
代理机构
代理人
主权项
地址
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