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经营范围
发明名称
Stone picker
摘要
申请公布号
US2706877(A)
申请公布日期
1955.04.26
申请号
US19520310789
申请日期
1952.09.22
申请人
KENNETH CALDWELL
发明人
CALDWELL KENNETH
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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