Improvements in or relating to cutter devices for coal or the like cutting machines,申请号GB19480023031-传众专利搜索

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发明名称	Improvements in or relating to cutter devices for coal or the like cutting machines
摘要
申请公布号	GB677886(A)	申请公布日期	1952.08.27
申请号	GB19480023031	申请日期	1948.09.01
申请人	NORMAN JAMES MUSCHAMP;FRANK COWLISHAW	发明人
分类号	E21C35/18;E21C35/19	主分类号	E21C35/18
代理机构		代理人
主权项
地址

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