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发明名称
摘要
申请公布号
JPS57140410(U)
申请公布日期
1982.09.02
申请号
JP19810027155U
申请日期
1981.02.27
申请人
发明人
分类号
H02P1/22;G05D3/00;G05D3/12;(IPC1-7):G05D3/12
主分类号
H02P1/22
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代理人
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