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发明名称
Piezoelektrischer Filter
摘要
申请公布号
DE1491498(A1)
申请公布日期
1969.10.02
申请号
DE19631491498
申请日期
1963.05.31
申请人
SONUS CORP.
发明人
H. FOWLER,PETER
分类号
H03H9/54;H03H9/58;H03H9/60
主分类号
H03H9/54
代理机构
代理人
主权项
地址
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