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经营范围
发明名称
SURFACE DUCTING
摘要
申请公布号
GB2026254(B)
申请公布日期
1982.12.08
申请号
GB19790023905
申请日期
1979.07.09
申请人
HAPPER SYSTEMS LTD
发明人
分类号
F16L3/26;H02G3/04;(IPC1-7):H02G3/04
主分类号
F16L3/26
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代理人
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