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发明名称
Attaching device
摘要
申请公布号
US1850725(A)
申请公布日期
1932.03.22
申请号
US19300493522
申请日期
1930.11.05
申请人
NELSON BEN S
发明人
NELSON BEN S.
分类号
A47L3/04
主分类号
A47L3/04
代理机构
代理人
主权项
地址
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