Telescopic derrick and locking means therefor,申请号GB19600004407-传众专利搜索

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发明名称	Telescopic derrick and locking means therefor
摘要
申请公布号	GB890086(A)	申请公布日期	1962.02.28
申请号	GB19600004407	申请日期	1960.02.08
申请人	CABOT CORPORATION	发明人
分类号	E04H12/34;E21B15/00	主分类号	E04H12/34
代理机构		代理人
主权项
地址

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