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发明名称
Improvements in flexible harrows for aerating grass lands and for like purposes
摘要
申请公布号
GB507020(A)
申请公布日期
1939.06.08
申请号
GB19380001249
申请日期
1938.01.14
申请人
ALFRED OGLE
发明人
分类号
A01B19/08
主分类号
A01B19/08
代理机构
代理人
主权项
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