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发明名称
Picture hanger
摘要
申请公布号
US1924864(A)
申请公布日期
1933.08.29
申请号
US19310527442
申请日期
1931.04.03
申请人
KOCHLER FREDERICK L
发明人
KOCHLER FREDERICK L.
分类号
A47G1/20
主分类号
A47G1/20
代理机构
代理人
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