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发明名称
Pavement marker
摘要
申请公布号
US1798467(A)
申请公布日期
1931.03.31
申请号
US19280308490
申请日期
1928.09.26
申请人
HARTZLER MELVIN E;ROMILLY EDGAR P
发明人
HARTZLER MELVIN E.;ROMILLY EDGAR P.
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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