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发明名称
Earth anchor
摘要
申请公布号
US1746848(A)
申请公布日期
1930.02.11
申请号
US19280301477
申请日期
1928.08.23
申请人
WALTER BATES STEEL CORPORATION
发明人
BATES WALTER A.
分类号
E02D27/42;E04H12/22
主分类号
E02D27/42
代理机构
代理人
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地址
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