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发明名称
METHOD OF AND APPARATUS FOR THE PREPARATION OF LAND FOR FACILITATING THE MECHANICAL HARVESTING OF ROOT CROPS
摘要
申请公布号
GB1269059(A)
申请公布日期
1972.03.29
申请号
GB19680049244
申请日期
1968.10.17
申请人
JOHN OWEN DAY
发明人
JOHN OWEN DAY
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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