Improvements relating to the laying of concrete,申请号GB19470035175-传众专利搜索

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发明名称	Improvements relating to the laying of concrete
摘要
申请公布号	GB633928(A)	申请公布日期	1949.12.30
申请号	GB19470035175	申请日期	1947.12.31
申请人	SOCIETE D'ETUDES ET D'APPLICATIONS TECHNIQUES	发明人
分类号	E01C19/48	主分类号	E01C19/48
代理机构		代理人
主权项
地址

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