Improved mine roof bolt,申请号GB19660017896-传众专利搜索

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发明名称	Improved mine roof bolt
摘要
申请公布号	GB1148054(A)	申请公布日期	1969.04.10
申请号	GB19660017896	申请日期	1966.04.25
申请人	TORQUE TENSION BOLT COMPANY (PROPRIETARY) LIMITED	发明人	ARTHUR ASKEY
分类号	F16B13/06	主分类号	F16B13/06
代理机构		代理人
主权项
地址

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