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发明名称
Clef calculatrice
摘要
申请公布号
FR1528938(A)
申请公布日期
1968.06.14
申请号
FR19670105459
申请日期
1967.05.05
申请人
发明人
THIEBAUT ROGER
分类号
G07F7/02
主分类号
G07F7/02
代理机构
代理人
主权项
地址
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