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发明名称
Improvements in and relating to earth excavating scrapers
摘要
申请公布号
GB544665(A)
申请公布日期
1942.04.22
申请号
GB19400016502
申请日期
1940.11.14
申请人
LEO BERNER
发明人
分类号
E02F3/64
主分类号
E02F3/64
代理机构
代理人
主权项
地址
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