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发明名称
Sliding writing board for desks
摘要
申请公布号
US2037919(A)
申请公布日期
1936.04.21
申请号
US19350010641
申请日期
1935.03.12
申请人
BURNS POE ROBERT
发明人
POE ROBERT BURNS
分类号
A47B17/03;A47B17/06
主分类号
A47B17/03
代理机构
代理人
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地址
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