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发明名称
IMPROVEMENTS IN OR RELATING TO A SAFETY ARRANGEMENT
摘要
申请公布号
GB9017170(D0)
申请公布日期
1990.09.19
申请号
GB19900017170
申请日期
1990.08.06
申请人
LONGWORTH, JOHN
发明人
分类号
A62B1/00;E04B7/18;E04D13/12
主分类号
A62B1/00
代理机构
代理人
主权项
地址
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