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发明名称
Typewriter support
摘要
申请公布号
US2678862(A)
申请公布日期
1954.05.18
申请号
US19510249023
申请日期
1951.10.01
申请人
NATIONAL OFFICE SUPPLY MFG. CO., INC.
发明人
PALIUCA FRANK G.
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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