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发明名称
Federnde Einspannung der Membran einer Sprech- oder Hoerkapsel
摘要
申请公布号
DE976947(C)
申请公布日期
1964.09.17
申请号
DE1952M014530
申请日期
1952.06.25
申请人
STANDARD ELEKTRIK LORENZ AKTIENGESELLSCHAFT
发明人
GRUEGER WOLFGANG;KUNZI WALTER
分类号
H04M1/03;H04R7/20
主分类号
H04M1/03
代理机构
代理人
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