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发明名称
Means for providing variable capacity highways
摘要
申请公布号
US2287685(A)
申请公布日期
1942.06.23
申请号
US19400350962
申请日期
1940.08.03
申请人
JELINEK OTTO K
发明人
JELINEK OTTO K.
分类号
E01F15/00
主分类号
E01F15/00
代理机构
代理人
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