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发明名称
An improved drag-plough for use on roads and highways
摘要
申请公布号
GB788289(A)
申请公布日期
1957.12.23
申请号
GB19560030083
申请日期
1956.10.03
申请人
GOTTFRIED REISSINGER
发明人
分类号
E01H1/10
主分类号
E01H1/10
代理机构
代理人
主权项
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