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申请公布号
JPS57500079(A)
申请公布日期
1982.01.14
申请号
JP19810500542
申请日期
1981.01.16
申请人
发明人
分类号
E02B3/04;F16L1/12;F16L57/00;H02G1/06;H02G9/02
主分类号
E02B3/04
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