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发明名称
Desk having an extensible support for a typewriter
摘要
申请公布号
US2428211(A)
申请公布日期
1947.09.30
申请号
US19440531434
申请日期
1944.04.17
申请人
THE SENG COMPANY
发明人
FOX MARTIN
分类号
A47B21/02
主分类号
A47B21/02
代理机构
代理人
主权项
地址
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