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经营范围
发明名称
Improvements in or relating to permutation locks
摘要
申请公布号
GB341971(A)
申请公布日期
1931.01.26
申请号
GB19290032525
申请日期
1929.10.25
申请人
JAMES COOK
发明人
分类号
E05B37/16
主分类号
E05B37/16
代理机构
代理人
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