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经营范围
发明名称
Surface acoustic wave filter which is simple in structure
摘要
申请公布号
EP0548911(B1)
申请公布日期
1996.08.28
申请号
EP19920121794
申请日期
1992.12.22
申请人
NEC CORPORATION
发明人
YAMAMOTO, YASUSHI
分类号
H03H9/145;H03H9/64;H03H9/72;(IPC1-7):H03H9/64
主分类号
H03H9/145
代理机构
代理人
主权项
地址
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