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经营范围
发明名称
Percussion or repercussion apparatus
摘要
申请公布号
US2203384(A)
申请公布日期
1940.06.04
申请号
US19380201505
申请日期
1938.04.12
申请人
LESLIE DOUGLAS FRANK
发明人
DOUGLAS FRANK LESLIE
分类号
E02D7/12
主分类号
E02D7/12
代理机构
代理人
主权项
地址
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