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发明名称
IMPROVEMENTS IN SOIL PIERCING TOOLS
摘要
申请公布号
GB1207987(A)
申请公布日期
1970.10.07
申请号
GB19670028044
申请日期
1967.06.17
申请人
DIRECT NITROGEN LIMITED
发明人
KENNETH HORACE NANCE
分类号
A01C23/02
主分类号
A01C23/02
代理机构
代理人
主权项
地址
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