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发明名称
Typewriting machine
摘要
申请公布号
US2357487(A)
申请公布日期
1944.09.05
申请号
US19420444550
申请日期
1942.05.26
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人
MILLS ALBERT W.;FURMAN FRANK J.
分类号
主分类号
代理机构
代理人
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