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经营范围
发明名称
Boom construction
摘要
申请公布号
US2066600(A)
申请公布日期
1937.01.05
申请号
US19350037203
申请日期
1935.08.21
申请人
THEW SHOVEL COMPANY
发明人
WILSON EMERY J.
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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