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发明名称
Posting device
摘要
申请公布号
US2880048(A)
申请公布日期
1959.03.31
申请号
US19570637176
申请日期
1957.01.30
申请人
VISI-RECORD, INC.
发明人
WESTON HERBERT
分类号
A47B63/06
主分类号
A47B63/06
代理机构
代理人
主权项
地址
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