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发明名称
Loading machine
摘要
申请公布号
US2639023(A)
申请公布日期
1953.05.19
申请号
US19460657107
申请日期
1946.03.26
申请人
JOY MANUFACTURING COMPANY
发明人
GOODRICH ROSS H.
分类号
E21D9/12
主分类号
E21D9/12
代理机构
代理人
主权项
地址
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