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发明名称
TYPEWRITER
摘要
申请公布号
GB2021830(B)
申请公布日期
1982.02.24
申请号
GB19790015254
申请日期
1979.05.02
申请人
IBM CORP
发明人
分类号
B41J21/00;B41J29/36;G06K15/08;H04L17/16;(IPC1-7):B41J29/26
主分类号
B41J21/00
代理机构
代理人
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地址
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