Improvements in, and relating to, valve apparatus for rock drills and like fluid pressure operated tools,申请号GB19300024610-传众专利搜索

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发明名称	Improvements in, and relating to, valve apparatus for rock drills and like fluid pressure operated tools
摘要
申请公布号	GB356437(A)	申请公布日期	1931.09.10
申请号	GB19300024610	申请日期	1930.08.16
申请人	GEORGE HENRY TURTON RAYNER;PERCY THORPE RAYNER	发明人
分类号	B25D9/20	主分类号	B25D9/20
代理机构		代理人
主权项
地址

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