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发明名称
Perfectionnements à certains jouets magnétiques
摘要
申请公布号
FR1127397(A)
申请公布日期
1956.12.14
申请号
FRD1127397
申请日期
1955.07.13
申请人
发明人
DUCHESNE JEAN
分类号
A63H33/26
主分类号
A63H33/26
代理机构
代理人
主权项
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