Dispositif pour signalisation de voies ferrées,申请号FRD801901-传众专利搜索

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发明名称	Dispositif pour signalisation de voies ferrées
摘要
申请公布号	FR801901(A)	申请公布日期	1936.08.21
申请号	FRD801901	申请日期	1936.02.14
申请人	MICHELIN & COMPAGNIE	发明人
分类号	B61L1/18	主分类号	B61L1/18
代理机构		代理人
主权项
地址

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