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经营范围
发明名称
Improvements in or relating to harrows
摘要
申请公布号
GB672065(A)
申请公布日期
1952.05.14
申请号
GB19500008569
申请日期
1950.04.05
申请人
FREDERICK WALTER CHOAT
发明人
分类号
A01B23/02
主分类号
A01B23/02
代理机构
代理人
主权项
地址
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