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经营范围
发明名称
Doorknob
摘要
申请公布号
US2344376(A)
申请公布日期
1944.03.14
申请号
US19410418965
申请日期
1941.11.13
申请人
STONE NATHANIEL B
发明人
STONE NATHANIEL B.
分类号
E05B3/04
主分类号
E05B3/04
代理机构
代理人
主权项
地址
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