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经营范围
发明名称
Swing loading system
摘要
申请公布号
US2982391(A)
申请公布日期
1961.05.02
申请号
US19580720660
申请日期
1958.03.11
申请人
GEWERKSCHAFT EISENHUTTE WESTPHALIA
发明人
HERRMANN HELMUT
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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