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发明名称
Schallwandler mit einer Einrichtung zur Erzeugung einer Messspannung
摘要
申请公布号
DE2743881(B1)
申请公布日期
1978.12.14
申请号
DE19772743881
申请日期
1977.09.29
申请人
SIEMENS AG, 1000 BERLIN UND 8000 MUENCHEN
发明人
GIES, JOHANNES, DIPL.-ING., 8150 HOLZKIRCHEN
分类号
H04R3/00;(IPC1-7):H04R3/04
主分类号
H04R3/00
代理机构
代理人
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地址
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