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发明名称
Suspension means for picture frames
摘要
申请公布号
US2180211(A)
申请公布日期
1939.11.14
申请号
US19370146602
申请日期
1937.06.05
申请人
KELLOGG EDWARD N
发明人
KELLOGG EDWARD N.
分类号
A47G1/16
主分类号
A47G1/16
代理机构
代理人
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