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经营范围
发明名称
Sofa bed
摘要
申请公布号
US2392309(A)
申请公布日期
1946.01.08
申请号
US19440530615
申请日期
1944.04.12
申请人
THE AUTOMATIC HINGE CO.
发明人
BURTON ROBERT A.
分类号
A47C17/17
主分类号
A47C17/17
代理机构
代理人
主权项
地址
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