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发明名称
Road marker
摘要
申请公布号
US1983102(A)
申请公布日期
1934.12.04
申请号
US19330656486
申请日期
1933.02.13
申请人
THE LIBBEY CATAPHOTE CORPORATION
发明人
SEARIGHT WILLIAM H.
分类号
E01F9/06
主分类号
E01F9/06
代理机构
代理人
主权项
地址
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