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发明名称
HAY SWEEPING MEANS
摘要
申请公布号
CA296771(A)
申请公布日期
1930.01.21
申请号
CAD296771
申请日期
申请人
LOUIS BUTLER
发明人
LOUIS BUTLER
分类号
主分类号
代理机构
代理人
主权项
地址
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