Крепление рельсов к железобетонным шпалам,申请号SU19480376428-传众专利搜索

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发明名称	Крепление рельсов к железобетонным шпалам
摘要
申请公布号	SU75080(A1)	申请公布日期	1948.11.30
申请号	SU19480376428	申请日期	1948.03.29
申请人	KARAPETYAN K.S.	发明人	KARAPETYAN K.S.
分类号	E01B9/18;E01B9/02	主分类号	E01B9/18
代理机构		代理人
主权项
地址

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