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发明名称
Improvements in typewriters
摘要
申请公布号
GB843894(A)
申请公布日期
1960.08.10
申请号
GB19580027464
申请日期
1958.08.27
申请人
SVEN KIER
发明人
分类号
B41J7/02
主分类号
B41J7/02
代理机构
代理人
主权项
地址
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