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发明名称
Means for mounting and locking roadside markers
摘要
申请公布号
US2229075(A)
申请公布日期
1941.01.21
申请号
US19390301432
申请日期
1939.10.26
申请人
SIGNAL SERVICE CORPORATION
发明人
JR. JOHN C. HAGGART,
分类号
E01F9/018
主分类号
E01F9/018
代理机构
代理人
主权项
地址
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