Verfahren und Vorrichtung zur Richtungsaenderung eines Tiefbohrmeissels,申请号DE1949P047797-传众专利搜索

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发明名称	Verfahren und Vorrichtung zur Richtungsaenderung eines Tiefbohrmeissels
摘要
申请公布号	DE835581(C)	申请公布日期	1952.04.03
申请号	DE1949P047797	申请日期	1949.07.05
申请人	DIPL.-ING. HANS LANGE	发明人	LANGE DIPL.-ING. HANS
分类号	E21B7/06;E21B7/08;E21B10/40	主分类号	E21B7/06
代理机构		代理人
主权项
地址

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