Combination hammer and rotary drill tool,申请号US19630311432-传众专利搜索

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发明名称	Combination hammer and rotary drill tool
摘要
申请公布号	US3193025(A)	申请公布日期	1965.07.06
申请号	US19630311432	申请日期	1963.09.25
申请人	REITZEL VERNON E	发明人	REITZEL VERNON E.
分类号	E21B6/00	主分类号	E21B6/00
代理机构		代理人
主权项
地址

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