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经营范围
发明名称
Permutation lock
摘要
申请公布号
US2083859(A)
申请公布日期
1937.06.15
申请号
US19350007381
申请日期
1935.02.20
申请人
NATIONAL LOCK CO.
发明人
NORTH EDWIN
分类号
E05B29/00
主分类号
E05B29/00
代理机构
代理人
主权项
地址
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