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经营范围
发明名称
Mining machine
摘要
申请公布号
US2082119(A)
申请公布日期
1937.06.01
申请号
US19330666838
申请日期
1933.04.19
申请人
GOODMAN MANUFACTURING COMPANY
发明人
PRAY THOMAS E.
分类号
E21C35/20
主分类号
E21C35/20
代理机构
代理人
主权项
地址
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