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发明名称
Panneaux indicateurs et procédé pour leur fabrication
摘要
申请公布号
FR971866(A)
申请公布日期
1951.01.23
申请号
FRD971866
申请日期
1948.09.21
申请人
发明人
NEEF ROBERT-MARCEL DE
分类号
G09F13/16
主分类号
G09F13/16
代理机构
代理人
主权项
地址
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