Dispositif automatique de sûreté pour passages à niveau,申请号FRD785928-传众专利搜索

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发明名称	Dispositif automatique de sûreté pour passages à niveau
摘要
申请公布号	FR785928(A)	申请公布日期	1935.08.22
申请号	FRD785928	申请日期	1934.11.17
申请人		发明人	FRYBA JOSEF
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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