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发明名称
Highway marker
摘要
申请公布号
US2224554(A)
申请公布日期
1940.12.10
申请号
US19380187258
申请日期
1938.01.27
申请人
RESILIENT PRODUCTS CORPORATION
发明人
STEDMAN THEODORE W.
分类号
E01F9/07
主分类号
E01F9/07
代理机构
代理人
主权项
地址
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