Improvements in the production of pre-stressed reinforced concrete sleepers,申请号GB19430006149-传众专利搜索

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发明名称	Improvements in the production of pre-stressed reinforced concrete sleepers
摘要
申请公布号	GB564938(A)	申请公布日期	1944.10.19
申请号	GB19430006149	申请日期	1943.04.16
申请人	DOWSETT ENGINEERING CONSTRUCTION LIMITED;RONALD SAMUEL VERNON BARBER	发明人
分类号	B28B7/46;B28B23/04	主分类号	B28B7/46
代理机构		代理人
主权项
地址

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