Bohrerkopf mit radialen Armen,申请号DE19671634523-传众专利搜索

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发明名称	Bohrerkopf mit radialen Armen
摘要
申请公布号	DE1634523(A1)	申请公布日期	1970.06.11
申请号	DE19671634523	申请日期	1967.04.08
申请人	PETERSEN,GERALD A.	发明人	A. PETERSEN,GERALD
分类号	E21B10/44	主分类号	E21B10/44
代理机构		代理人
主权项
地址

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