Auf einem Verrohrungskopf anordenbare Hauptabsperreinrichtung,申请号AT19600003448-传众专利搜索

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发明名称	Auf einem Verrohrungskopf anordenbare Hauptabsperreinrichtung
摘要
申请公布号	AT244266(B)	申请公布日期	1965.12.27
申请号	AT19600003448	申请日期	1960.05.06
申请人	MARVIN HENRY GROVE	发明人	MARVIN HENRY GROVE;MARVIN HENRY GROVE
分类号	E21B34/02;F16K3/00	主分类号	E21B34/02
代理机构		代理人
主权项
地址

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