Concrete sleeper with plugged holes,申请号GB19540026889-传众专利搜索

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发明名称	Concrete sleeper with plugged holes
摘要
申请公布号	GB757959(A)	申请公布日期	1956.09.26
申请号	GB19540026889	申请日期	1954.09.16
申请人	EVERTS & VAN DER WEYDEN N. V.	发明人
分类号	E01B9/18	主分类号	E01B9/18
代理机构		代理人
主权项
地址

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