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发明名称
Picture frames
摘要
A picture frame comprising a transparent synthetic plastics plate with inclined edges, and a clamping member which snaps between the inclined edges and presses a picture against the transparent plate by spring action.
申请公布号
US4270288(A)
申请公布日期
1981.06.02
申请号
US19790104634
申请日期
1979.12.17
申请人
SULZER, ERNST
发明人
SULZER, ERNST
分类号
G09F1/12;(IPC1-7):G09F1/12
主分类号
G09F1/12
代理机构
代理人
主权项
地址
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