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发明名称
OBSTRUCTION REMOVING DEVICE
摘要
申请公布号
JPH1150490(A)
申请公布日期
1999.02.23
申请号
JP19970220209
申请日期
1997.07.31
申请人
YOSHIMI SANGYO:KK
发明人
SAITO YOSHIMI
分类号
E02F7/02;E02D9/00;(IPC1-7):E02F7/02
主分类号
E02F7/02
代理机构
代理人
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