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经营范围
发明名称
Knobless door latch
摘要
申请公布号
US2492322(A)
申请公布日期
1949.12.27
申请号
US19460674890
申请日期
1946.06.06
申请人
RUSSELL FRANK W
发明人
RUSSELL FRANK W.
分类号
E05B17/20;E05C1/14
主分类号
E05B17/20
代理机构
代理人
主权项
地址
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