LOCKING DEVICE FOR A CHAIN TAKE-UP,申请号GB19770042477-传众专利搜索

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发明名称	LOCKING DEVICE FOR A CHAIN TAKE-UP
摘要
申请公布号	GB1586292(A)	申请公布日期	1981.03.18
申请号	GB19770042477	申请日期	1977.10.12
申请人	DRESSER INDUSTRIES INC	发明人
分类号	E21C27/24;E21C31/06;(IPC1-7):E21C25/28	主分类号	E21C27/24
代理机构		代理人
主权项
地址

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