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发明名称
Device for serving subscribers with newspapers
摘要
申请公布号
US2156858(A)
申请公布日期
1939.05.02
申请号
US19370161121
申请日期
1937.08.26
申请人
LANDIS RANKIN D
发明人
LANDIS RANKIN D.
分类号
A47G29/122
主分类号
A47G29/122
代理机构
代理人
主权项
地址
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