Trepanning drill bit cooling system - has annular coolant pipe sliding on and enclosing tubular shank (AT 15.12.81),申请号DE19803049268-传众专利搜索

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发明名称	Trepanning drill bit cooling system - has annular coolant pipe sliding on and enclosing tubular shank (AT 15.12.81)
摘要
申请公布号	DE3049268(A1)	申请公布日期	1982.07.29
申请号	DE19803049268	申请日期	1980.12.27
申请人	RADA,OSWALD	发明人	RADA,OSWALD
分类号	B23B51/04;B23Q11/00;B23Q11/10;B28D1/04;B28D1/14;E21B21/015;(IPC1-7):28D1/14;23B51/04	主分类号	B23B51/04
代理机构		代理人
主权项
地址

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