METHOD AND APPARATUS FOR MAKING PIPE FROM CONCRETE AND LIKE MATERIALS,申请号CAD520949-传众专利搜索

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发明名称	METHOD AND APPARATUS FOR MAKING PIPE FROM CONCRETE AND LIKE MATERIALS
摘要
申请公布号	CA520949(A)	申请公布日期	1956.01.17
申请号	CAD520949	申请日期
申请人	GEORGE R. JESSEN	发明人	CARL W. CHANLUND
分类号		主分类号
代理机构		代理人
主权项
地址

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