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发明名称
Drag bucket
摘要
申请公布号
US1974425(A)
申请公布日期
1934.09.25
申请号
US19320615534
申请日期
1932.06.06
申请人
BUCYRUS-ERIE COMPANY
发明人
LEHMAN WERNER
分类号
E02F3/60
主分类号
E02F3/60
代理机构
代理人
主权项
地址
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