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发明名称
Door closing device
摘要
申请公布号
US2499719(A)
申请公布日期
1950.03.07
申请号
US19480034020
申请日期
1948.06.19
申请人
JAMES H. BOYE MANUFACTURING COMPANY
发明人
BOYE JAMES H.
分类号
E05F1/10
主分类号
E05F1/10
代理机构
代理人
主权项
地址
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