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发明名称
Display card holder
摘要
申请公布号
US2328806(A)
申请公布日期
1943.09.07
申请号
US19410398829
申请日期
1941.06.19
申请人
HOOFER CHARLES F
发明人
HOOFER CHARLES F.
分类号
G09F3/18
主分类号
G09F3/18
代理机构
代理人
主权项
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