Dispositif de sûreté muni d'une sonnerie électrique pour locomotives et véhicules analogues,申请号FRD707461-传众专利搜索

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发明名称	Dispositif de sûreté muni d'une sonnerie électrique pour locomotives et véhicules analogues
摘要
申请公布号	FR707461(A)	申请公布日期	1931.07.08
申请号	FRD707461	申请日期	1930.12.12
申请人		发明人	WIDMANN GEORG
分类号	B61L3/04	主分类号	B61L3/04
代理机构		代理人
主权项
地址

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