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经营范围
发明名称
Indicateur-avertisseur lumineux et sonore de passage à niveau
摘要
申请公布号
FR784187(A)
申请公布日期
1935.07.22
申请号
FRD784187
申请日期
1935.01.15
申请人
发明人
SAZERAT EMILE;FINOCHI ALBERT
分类号
B61L29/28
主分类号
B61L29/28
代理机构
代理人
主权项
地址
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