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经营范围
发明名称
Boom for excavating machines
摘要
申请公布号
US2053157(A)
申请公布日期
1936.09.01
申请号
US19340759959
申请日期
1934.12.31
申请人
AMERICAN HOIST AND DERRICK COMPANY
发明人
LJUNGKULL ROLF E.
分类号
E02F9/14
主分类号
E02F9/14
代理机构
代理人
主权项
地址
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