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发明名称
One-way roller barrier for parking lot
摘要
申请公布号
US3376667(A)
申请公布日期
1968.04.09
申请号
US19660577043
申请日期
1966.09.02
申请人
WENDELL L. THOMPSON
发明人
PARR EDWARD L.
分类号
E01F13/10
主分类号
E01F13/10
代理机构
代理人
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地址
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