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发明名称
Expandable easel
摘要
申请公布号
US3226077(A)
申请公布日期
1965.12.28
申请号
US19630291042
申请日期
1963.06.27
申请人
KILLEN DUNCAN C
发明人
KILLEN DUNCAN C.
分类号
A47B97/08
主分类号
A47B97/08
代理机构
代理人
主权项
地址
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