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发明名称
Folding mattress
摘要
申请公布号
US1785252(A)
申请公布日期
1930.12.16
申请号
US19290393905
申请日期
1929.09.20
申请人
GREENPOINT METALLIC BED CO., INC.
发明人
FRANK BENJAMIN M.
分类号
A47C27/00
主分类号
A47C27/00
代理机构
代理人
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