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发明名称
SURFACE WAVE FILTERS OR DELAY LINES
摘要
申请公布号
GB1581740(A)
申请公布日期
1980.12.17
申请号
GB19770017053
申请日期
1977.04.25
申请人
SIEMENS AG
发明人
分类号
H03H3/08;H03H9/02;H03H9/145;(IPC1-7):H03H9/14
主分类号
H03H3/08
代理机构
代理人
主权项
地址
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