Improvements in or relating to methods and apparatus for controlling rotary speed and feed rate of the cutter head of a tunnelling machine,申请号GB19670013341-传众专利搜索

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发明名称	Improvements in or relating to methods and apparatus for controlling rotary speed and feed rate of the cutter head of a tunnelling machine
摘要
申请公布号	GB1182666(A)	申请公布日期	1970.03.04
申请号	GB19670013341	申请日期	1967.03.22
申请人	ATLAS COPCO MCT A.B.	发明人
分类号	E21C31/00;E21D9/00;E21D9/10	主分类号	E21C31/00
代理机构		代理人
主权项
地址

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