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发明名称
RIDGER
摘要
申请公布号
PL149228(B1)
申请公布日期
1990.01.31
申请号
PL19860259339
申请日期
1986.05.05
申请人
发明人
分类号
A01B13/02;A01B61/04;(IPC1-7):A01B13/02
主分类号
A01B13/02
代理机构
代理人
主权项
地址
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