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经营范围
发明名称
VARIABLE PHASE SHIFTER
摘要
申请公布号
GB8707510(D0)
申请公布日期
1987.05.07
申请号
GB19870007510
申请日期
1987.03.30
申请人
ERA PATENTS LTD
发明人
分类号
H03H11/20
主分类号
H03H11/20
代理机构
代理人
主权项
地址
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