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经营范围
发明名称
Improvements in combination locks
摘要
申请公布号
GB324296(A)
申请公布日期
1930.01.23
申请号
GB19290011583
申请日期
1929.04.15
申请人
POL RAVIGNEAUX
发明人
分类号
E05B37/14;E05B67/22
主分类号
E05B37/14
代理机构
代理人
主权项
地址
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