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发明名称
Improvements in snow ploughs
摘要
申请公布号
GB617697(A)
申请公布日期
1949.02.10
申请号
GB19460031027
申请日期
1946.10.18
申请人
ARTHUR SPENCER
发明人
分类号
E01H5/02
主分类号
E01H5/02
代理机构
代理人
主权项
地址
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