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发明名称
LOCKABLE BARRIERS
摘要
申请公布号
GB1556947(A)
申请公布日期
1979.12.05
申请号
GB19770039284
申请日期
1977.09.21
申请人
HOLBEIN H
发明人
分类号
E01F13/08;(IPC1-7):E01F13/00;E05D11/10;E05F13/02
主分类号
E01F13/08
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