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发明名称
摘要
申请公布号
JPS6425902(U)
申请公布日期
1989.02.14
申请号
JP19870154957U
申请日期
1987.10.09
申请人
发明人
分类号
A01C11/02;B60B15/02;(IPC1-7):B60B15/02
主分类号
A01C11/02
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