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发明名称
Sofa-bed
摘要
申请公布号
US1878405(A)
申请公布日期
1932.09.20
申请号
US19310523533
申请日期
1931.03.18
申请人
S. KARPEN & BROS.
发明人
KARPEN SOLOMON
分类号
A47C17/16
主分类号
A47C17/16
代理机构
代理人
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