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发明名称
摘要
申请公布号
JPS5536620(Y2)
申请公布日期
1980.08.28
申请号
JP19740147479U
申请日期
1974.12.03
申请人
发明人
分类号
E02F9/20;B66C13/46;B66C13/56;E02F9/12;(IPC1-7):E02F9/20
主分类号
E02F9/20
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