ANTI-TWIST CONTROL SYSTEM,申请号GB19840009400-传众专利搜索

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发明名称	ANTI-TWIST CONTROL SYSTEM
摘要
申请公布号	GB8409400(D0)	申请公布日期	1984.05.23
申请号	GB19840009400	申请日期	1984.04.11
申请人	GURTLER HEBERT & CO INC	发明人
分类号	E21B7/04;E21B7/06;E21B7/08;(IPC1-7):E21B7/12	主分类号	E21B7/04
代理机构		代理人
主权项
地址

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