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发明名称
DISK HARROW
摘要
申请公布号
CA545907(A)
申请公布日期
1957.09.10
申请号
CAD545907
申请日期
申请人
HARRY A. PURSCHE
发明人
HARRY A. PURSCHE
分类号
主分类号
代理机构
代理人
主权项
地址
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