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发明名称
Method of building subterranean structures
摘要
申请公布号
US2164003(A)
申请公布日期
1939.06.27
申请号
US19370134032
申请日期
1937.03.31
申请人
HERMANN SCHEELHAASE
发明人
SCHEELHAASE HERMANN
分类号
E02D29/077
主分类号
E02D29/077
代理机构
代理人
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