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发明名称
TYPEWRITER
摘要
申请公布号
GB1546319(A)
申请公布日期
1979.05.23
申请号
GB19770052711
申请日期
1977.12.19
申请人
INTERNATIONAL BUSINESS MACHINES CORP
发明人
分类号
B41J19/50;(IPC1-7):B41J19/18
主分类号
B41J19/50
代理机构
代理人
主权项
地址
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