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经营范围
发明名称
Combination back rest and bed tray
摘要
申请公布号
US2504190(A)
申请公布日期
1950.04.18
申请号
US19480043128
申请日期
1948.08.07
申请人
FARRCLL LURA B
发明人
FARRCLL LURA B.
分类号
A47C7/42
主分类号
A47C7/42
代理机构
代理人
主权项
地址
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