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发明名称
Mobile stone-gathering apparatus
摘要
申请公布号
US2760322(A)
申请公布日期
1956.08.28
申请号
US19550539089
申请日期
1955.10.07
申请人
JOHN JOHNSON
发明人
JOHNSON JOHN
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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