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发明名称
Universal-type picture frame
摘要
申请公布号
US2534741(A)
申请公布日期
1950.12.19
申请号
US19460644723
申请日期
1946.02.01
申请人
SWENSON JOSEPH W
发明人
SWENSON JOSEPH W.
分类号
A47G1/14
主分类号
A47G1/14
代理机构
代理人
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