Lined concrete pipe,申请号US19630321393-传众专利搜索

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发明名称	Lined concrete pipe
摘要
申请公布号	US3381718(A)	申请公布日期	1968.05.07
申请号	US19630321393	申请日期	1963.11.01
申请人	ARNOLD DARROW	发明人	DARROW ARNOLD
分类号	B28B19/00;B29C63/28;F16L58/10	主分类号	B28B19/00
代理机构		代理人
主权项
地址

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