Improvements in and connected with rail sections,申请号GB19540020246-传众专利搜索

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发明名称	Improvements in and connected with rail sections
摘要
申请公布号	GB768709(A)	申请公布日期	1957.02.20
申请号	GB19540020246	申请日期	1954.07.10
申请人	ROAD MACHINES (DRAYTON) LIMITED;WILLIAM MUIR ROBB	发明人
分类号	E01B25/10	主分类号	E01B25/10
代理机构		代理人
主权项
地址

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