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发明名称
Installation de sécurité pour passage à niveau
摘要
申请公布号
FR787365(A)
申请公布日期
1935.09.21
申请号
FRD787365
申请日期
1935.03.13
申请人
N. V. MACHINERIEEN EN APPARATEN FABRIEKEN MEAF
发明人
分类号
B61L29/28
主分类号
B61L29/28
代理机构
代理人
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地址
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