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发明名称
Perfectionnement aux pendules, montres, réveils utilisés comme aide-mémoire à sonnerie
摘要
申请公布号
FR1519537(A)
申请公布日期
1968.04.05
申请号
FR19660059206
申请日期
1966.04.25
申请人
发明人
RAVRY JEAN ROGER
分类号
G04C21/20
主分类号
G04C21/20
代理机构
代理人
主权项
地址
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