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发明名称
Improvements in or relating to typewriter indicators
摘要
申请公布号
GB570785(A)
申请公布日期
1945.07.23
申请号
GB19440002493
申请日期
1944.02.10
申请人
FREDERICK WILLEM MESSCHAERT
发明人
分类号
B41J5/12
主分类号
B41J5/12
代理机构
代理人
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