BENTUK SIRKULASI MUATAN,申请号ID19970000722-传众专利搜索

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发明名称	BENTUK SIRKULASI MUATAN
摘要
申请公布号	ID16147(A)	申请公布日期	1997.09.04
申请号	ID19970000722	申请日期	1997.03.07
申请人	WESTERN ATLAS INTERNATIONAL, INC	发明人	MANMOHAN S. CHAWLA
分类号	E21B43/116;F42B1/00;(IPC1-7):A01H4/00	主分类号	E21B43/116
代理机构		代理人
主权项
地址

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