Lined concrete pipe,申请号US19400315708-传众专利搜索

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发明名称	Lined concrete pipe
摘要
申请公布号	US2243273(A)	申请公布日期	1941.05.27
申请号	US19400315708	申请日期	1940.01.26
申请人	AMERICAN CONCRETE AND STEEL PIPE COMPANY	发明人	EDWARDS ROBERT V.
分类号	F16L58/02	主分类号	F16L58/02
代理机构		代理人
主权项
地址

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