MARTENSITIC STAINLESS STEEL FOR AN OIL WELL,申请号US19910734216-传众专利搜索

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发明名称	MARTENSITIC STAINLESS STEEL FOR AN OIL WELL
摘要
申请公布号	US5167731(A)	申请公布日期	1992.12.01
申请号	US19910734216	申请日期	1991.07.22
申请人	NKK CORPORATION	发明人	MINAMI, YUSUKE;HASHIZUME, SHUJI;TAKAOKA, TATSUO;YAMADA, TAKEMI
分类号	C22C38/00;C22C38/44;C22C38/48	主分类号	C22C38/00
代理机构		代理人
主权项
地址

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