Method and apparatus for detecting defective portion on inner surface of pipe,申请号US19880227366-传众专利搜索

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发明名称	Method and apparatus for detecting defective portion on inner surface of pipe
摘要
申请公布号	US4872762(A)	申请公布日期	1989.10.10
申请号	US19880227366	申请日期	1988.08.02
申请人	NKK CORPORATION	发明人	KOSHIHARA, TOSHIO;MISAWA, ROKUROU;SAGAWA, YUZO;TAKEHARA, KIMIO;MATOBA, YUJI;ISHIHARA, KOJI
分类号	G01N25/72;(IPC1-7):G01N25/72	主分类号	G01N25/72
代理机构		代理人
主权项
地址

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