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发明名称
Door holder
摘要
申请公布号
US1742303(A)
申请公布日期
1930.01.07
申请号
US19280259211
申请日期
1928.03.05
申请人
NIELS CHRISTIANSEN
发明人
CHRISTIANSEN NIELS
分类号
E05C17/38
主分类号
E05C17/38
代理机构
代理人
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