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发明名称
Pavement form spader
摘要
申请公布号
US1934550(A)
申请公布日期
1933.11.07
申请号
US19300484117
申请日期
1930.09.24
申请人
MCCREE ANDREW A
发明人
MCCREE ANDREW A.
分类号
E01C19/42
主分类号
E01C19/42
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