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经营范围
发明名称
Piezoelectric filter
摘要
申请公布号
GB1058136(A)
申请公布日期
1967.02.08
申请号
GB19630030792
申请日期
1963.08.02
申请人
ROSENTHAL-ISOLATOREN-G.M.B.H.
发明人
分类号
H03H9/09;H03H9/13;H03H9/54;H03H9/56
主分类号
H03H9/09
代理机构
代理人
主权项
地址
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