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经营范围
发明名称
ROAD BARRIER WITH PIVOTABLE SPAN JOINTS
摘要
申请公布号
US3447786(A)
申请公布日期
1969.06.03
申请号
USD3447786
申请日期
1967.07.11
申请人
MARIO BIGNI
发明人
MARIO BIGNI
分类号
E01F15/04;(IPC1-7):E01F15/00;A01K3/00;E04H17/14
主分类号
E01F15/04
代理机构
代理人
主权项
地址
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