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申请公布号
JPS5531855(B2)
申请公布日期
1980.08.21
申请号
JP19750037006
申请日期
1975.03.28
申请人
发明人
分类号
E02F3/00;B66C23/06;B66C23/18;B66C23/40;E02F5/10;F16L1/036
主分类号
E02F3/00
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