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经营范围
发明名称
HYDRAULIC TRACTOR
摘要
申请公布号
PL121774(B1)
申请公布日期
1982.05.31
申请号
PL19790218764
申请日期
1979.10.04
申请人
发明人
分类号
E21C;E21C29/16;(IPC1-7):E21C29/16
主分类号
E21C
代理机构
代理人
主权项
地址
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