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发明名称
Perfectionnements aux machines à écrire
摘要
申请公布号
FR696013(A)
申请公布日期
1930.12.24
申请号
FRD696013
申请日期
1930.05.23
申请人
ROYAL TYPEWRITER COMPANY INC.
发明人
分类号
B41J7/02
主分类号
B41J7/02
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代理人
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