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发明名称
Earth-anchor tool
摘要
申请公布号
US1800504(A)
申请公布日期
1931.04.14
申请号
US19290337517
申请日期
1929.02.04
申请人
CHANCE ALBERT B
发明人
CHANCE ALBERT B.
分类号
E02D5/80;E02D7/22
主分类号
E02D5/80
代理机构
代理人
主权项
地址
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