Haltevorrichtung fuer einen in ein Tiefbohrloch eingehaengten Rohrstrang od. dgl.,申请号DE1955B034917-传众专利搜索

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发明名称	Haltevorrichtung fuer einen in ein Tiefbohrloch eingehaengten Rohrstrang od. dgl.
摘要
申请公布号	DE1064898(B)	申请公布日期	1959.09.10
申请号	DE1955B034917	申请日期	1955.03.17
申请人	GEORGE AARON BUTLER	发明人	JOHNSON CHARLES FRANCIS
分类号	E21B33/04	主分类号	E21B33/04
代理机构		代理人
主权项
地址

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