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发明名称
Cribbing
摘要
申请公布号
US2315441(A)
申请公布日期
1943.03.30
申请号
US19400353817
申请日期
1940.08.23
申请人
MASSEY CONCRETE PRODUCTS COMPANY
发明人
MCDANIEL WILLIAM LYLE
分类号
E02D29/02
主分类号
E02D29/02
代理机构
代理人
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