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发明名称
Stone picker
摘要
申请公布号
US2569719(A)
申请公布日期
1951.10.02
申请号
US19490133308
申请日期
1949.12.16
申请人
HUHNE HENRY J
发明人
HUHNE HENRY J.
分类号
A01B43/00
主分类号
A01B43/00
代理机构
代理人
主权项
地址
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