Method of forming passages in concrete beams or the like,申请号GB19490003353-传众专利搜索

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发明名称	Method of forming passages in concrete beams or the like
摘要
申请公布号	GB682320(A)	申请公布日期	1952.11.05
申请号	GB19490003353	申请日期	1949.02.07
申请人	ARMAND BLATON;EMILE BLATON	发明人
分类号	B28B7/18;B28B7/28;B28B7/30;B28B23/04;H01T1/10	主分类号	B28B7/18
代理机构		代理人
主权项
地址

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