GREIF- UND FUEHRUNGSKOPF FUER EINE ROHRLAENGE,申请号AT19770002569-传众专利搜索

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发明名称	GREIF- UND FUEHRUNGSKOPF FUER EINE ROHRLAENGE
摘要
申请公布号	ATA256977(A)	申请公布日期	1979.06.15
申请号	AT19770002569	申请日期	1977.04.13
申请人	BJ-HUGHES INC.	发明人
分类号	B66C1/42;E21B19/02;E21B19/16;(IPC1-7):E21B19/00	主分类号	B66C1/42
代理机构		代理人
主权项
地址

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