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经营范围
发明名称
VARIABLE FIRMNESS SLEEP UNIT
摘要
申请公布号
US3551924(A)
申请公布日期
1971.01.05
申请号
USD3551924
申请日期
1969.05.19
申请人
JAMES R. FRYE SR.
发明人
JAMES R. FRYE SR.
分类号
A47C31/12;(IPC1-7):A47C27/08;A47C23/00
主分类号
A47C31/12
代理机构
代理人
主权项
地址
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