GRIPEHODE.,申请号NO19800003629-传众专利搜索

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发明名称	GRIPEHODE.
摘要
申请公布号	NO155983(B)	申请公布日期	1987.03.23
申请号	NO19800003629	申请日期	1980.12.02
申请人	BJ-HUGHES INC.	发明人	LANGOWSKI, FAUSTYN C.
分类号	E21B19/14;(IPC1-7):E21B19/12	主分类号	E21B19/14
代理机构		代理人
主权项
地址

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