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发明名称
Combination lock
摘要
申请公布号
US2220148(A)
申请公布日期
1940.11.05
申请号
US19390309320
申请日期
1939.12.15
申请人
JACK EBER
发明人
EBER JACK
分类号
E05B37/02
主分类号
E05B37/02
代理机构
代理人
主权项
地址
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