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经营范围
发明名称
Improvements in or relating to excavating machines
摘要
申请公布号
GB629373(A)
申请公布日期
1949.09.19
申请号
GB19470016318
申请日期
1947.06.20
申请人
KOEHRING COMPANY
发明人
分类号
E02F3/38
主分类号
E02F3/38
代理机构
代理人
主权项
地址
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