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发明名称
KEYHOLE PROTECTION DEVICE
摘要
申请公布号
JPH0533535(A)
申请公布日期
1993.02.09
申请号
JP19910207254
申请日期
1991.07.25
申请人
HITACHI BUILDING SYST ENG & SERVICE CO LTD
发明人
YAMAMOTO MASAO
分类号
E05B17/14;E05B17/18
主分类号
E05B17/14
代理机构
代理人
主权项
地址
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