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发明名称
Lock keeper
摘要
申请公布号
US2167391(A)
申请公布日期
1939.07.25
申请号
US19370180676
申请日期
1937.12.20
申请人
HANCOCK MANUFACTURING COMPANY
发明人
MARPLE ROLLO
分类号
E05B63/24
主分类号
E05B63/24
代理机构
代理人
主权项
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