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发明名称
摘要
申请公布号
SU557443(A1)
申请公布日期
1977.05.05
申请号
SU19752146191
申请日期
1975.06.18
申请人
发明人
分类号
H01P1/28;(IPC1-7):H01P1/28
主分类号
H01P1/28
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