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发明名称
Method of and means for correcting paving settlements
摘要
申请公布号
US1915032(A)
申请公布日期
1933.06.20
申请号
US19300452002
申请日期
1930.05.13
申请人
NATIONAL EQUIPMENT CORPORATION
发明人
POULTER JOHN W.
分类号
E01C23/10
主分类号
E01C23/10
代理机构
代理人
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