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发明名称
Compaction machine
摘要
申请公布号
US2199649(A)
申请公布日期
1940.05.07
申请号
US19370119519
申请日期
1937.01.07
申请人
KOEHRING COMPANY
发明人
POULTER JOHN W.
分类号
E01C19/28
主分类号
E01C19/28
代理机构
代理人
主权项
地址
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