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发明名称
Bloc-notes utilisable dans l'obscurité
摘要
申请公布号
FR783978(A)
申请公布日期
1935.07.20
申请号
FRD783978
申请日期
1935.01.10
申请人
F. SOENNECKEN
发明人
分类号
B42D5/00
主分类号
B42D5/00
代理机构
代理人
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