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经营范围
发明名称
Pile structure
摘要
申请公布号
US1805975(A)
申请公布日期
1931.05.19
申请号
US19280298142
申请日期
1928.08.08
申请人
CAMPBELL HARRY V
发明人
CAMPBELL HARRY V.
分类号
E02D5/12
主分类号
E02D5/12
代理机构
代理人
主权项
地址
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