SLEEVE FOR UNDERCUTTING DRILLING PIPE CONNECTING ENDS,申请号SU19742079393-传众专利搜索

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发明名称	SLEEVE FOR UNDERCUTTING DRILLING PIPE CONNECTING ENDS
摘要
申请公布号	SU733866(A1)	申请公布日期	1980.05.15
申请号	SU19742079393	申请日期	1974.11.20
申请人	YAROSHEVSKIJ FEDOR M,SU;DOBRINSKIJ ALEKSANDR G,SU;VYAZMITINOV VLADIMIR G,SU	发明人	YAROSHEVSKIJ FEDOR M,SU;DOBRINSKIJ ALEKSANDR G,SU;VYAZMITINOV VLADIMIR G,SU
分类号	B23B5/16;(IPC1-7):B23B5/16	主分类号	B23B5/16
代理机构		代理人
主权项
地址

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