Improvements in or relating to Boring Machines for the Mining of Coal.,申请号GB19660053807-传众专利搜索

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发明名称	Improvements in or relating to Boring Machines for the Mining of Coal.
摘要
申请公布号	GB1156799(A)	申请公布日期	1969.07.02
申请号	GB19660053807	申请日期	1966.12.01
申请人	FRIEDRICH WILHELM PAURAT	发明人	FRIEDRICH WILHELM PAURAT
分类号	E21C25/58;E21C35/00;E21F7/00	主分类号	E21C25/58
代理机构		代理人
主权项
地址

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