Improvements in or relating to power hammers,申请号GB19340009304-传众专利搜索

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发明名称	Improvements in or relating to power hammers
摘要
申请公布号	GB437267(A)	申请公布日期	1935.10.24
申请号	GB19340009304	申请日期	1934.03.24
申请人	ROBERT REX DOWNIE	发明人
分类号	B21J7/12;E01C23/12;E02F3/96	主分类号	B21J7/12
代理机构		代理人
主权项
地址

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