Improvements in or relating to fluid pressure percussive tools,申请号GB19320016672-传众专利搜索

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发明名称	Improvements in or relating to fluid pressure percussive tools
摘要
申请公布号	GB382585(A)	申请公布日期	1932.10.27
申请号	GB19320016672	申请日期	1931.05.06
申请人	SIR W. G. ARMSTRONG WHITWORTH AND COMPANY (ENGINEERS) LIMITED;ERNEST HENRY SWEETSER	发明人
分类号	E21B21/01	主分类号	E21B21/01
代理机构		代理人
主权项
地址

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