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发明名称
Doorstop
摘要
申请公布号
US1921568(A)
申请公布日期
1933.08.08
申请号
US19320626981
申请日期
1932.07.30
申请人
HASSELBERGER LOUISA E
发明人
HASSELBERGER LOUISA E.
分类号
E05C17/54
主分类号
E05C17/54
代理机构
代理人
主权项
地址
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