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发明名称
Door lock
摘要
申请公布号
US2242508(A)
申请公布日期
1941.05.20
申请号
US19400341707
申请日期
1940.06.21
申请人
CHING JOHN F
发明人
CHING JOHN F.
分类号
E05B55/04;E05C1/16
主分类号
E05B55/04
代理机构
代理人
主权项
地址
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