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经营范围
发明名称
ELECTROMECHANICAL FILTER
摘要
申请公布号
YU37250(B)
申请公布日期
1984.08.31
申请号
YU19760003119
申请日期
1976.12.22
申请人
SIEMENS
发明人
分类号
H03H9/46;H03H9/50;H04R17/08;(IPC1-7):H03H9/26
主分类号
H03H9/46
代理机构
代理人
主权项
地址
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