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经营范围
发明名称
Unit box spring and mattress
摘要
申请公布号
US2312411(A)
申请公布日期
1943.03.02
申请号
US19380217933
申请日期
1938.07.07
申请人
NO-SAG SPRING COMPANY
发明人
HOPKES HENRY
分类号
A47C27/045
主分类号
A47C27/045
代理机构
代理人
主权项
地址
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