Improvements in or relating to drill hammers,申请号GB19600013475-传众专利搜索

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发明名称	Improvements in or relating to drill hammers
摘要
申请公布号	GB950730(A)	申请公布日期	1964.02.26
申请号	GB19600013475	申请日期	1960.04.14
申请人	FRIEDRICH HEINRICH FLOTTMANN	发明人
分类号	E21B21/00;E21B21/01	主分类号	E21B21/00
代理机构		代理人
主权项
地址

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