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发明名称
SECURITY BARRIER
摘要
申请公布号
GB2264332(A)
申请公布日期
1993.08.25
申请号
GB19930003509
申请日期
1993.02.22
申请人
THE * POST OFFICE
发明人
DAVID PAUL * COWARD
分类号
A62C2/10;A62C2/24;E05G7/00;E06B9/262
主分类号
A62C2/10
代理机构
代理人
主权项
地址
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