Plow type mining machine with pivotable cutting members,申请号US19550495243-传众专利搜索

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发明名称	Plow type mining machine with pivotable cutting members
摘要
申请公布号	US2764395(A)	申请公布日期	1956.09.25
申请号	US19550495243	申请日期	1955.03.18
申请人	STAMICARBON N. V.	发明人	KRAPELS JOHANNES G.
分类号	E21C27/34	主分类号	E21C27/34
代理机构		代理人
主权项
地址

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