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发明名称
摘要
申请公布号
JPH03108319(U)
申请公布日期
1991.11.07
申请号
JP19900017599U
申请日期
1990.02.23
申请人
发明人
分类号
A01C23/02;A01C11/00;(IPC1-7):A01C23/02
主分类号
A01C23/02
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