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经营范围
发明名称
An improved protective device for night latches and like spring locks
摘要
申请公布号
GB354590(A)
申请公布日期
1931.08.13
申请号
GB19300027255
申请日期
1930.09.12
申请人
CHARLES HENRY BURTON LADBROOK
发明人
分类号
E05B13/00
主分类号
E05B13/00
代理机构
代理人
主权项
地址
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