ROLLER-CUTTER DRILLING BIT SUPPORT,申请号SU19904873312-传众专利搜索

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发明名称	ROLLER-CUTTER DRILLING BIT SUPPORT
摘要
申请公布号	RU1808967(C)	申请公布日期	1993.04.15
申请号	SU19904873312	申请日期	1990.10.12
申请人	VSESOYUZNYJ NAUCHNO-ISSLEDOVATELSKIJ INSTITUT BUROVOJ TEKHNIKI	发明人	POPOV ALEKSANDR N;POROZOV EVGENIJ M;BUDIN VLADIMIR P;NAZAROV ALEKSANDR M
分类号	E21B10/22;(IPC1-7):E21B10/22	主分类号	E21B10/22
代理机构		代理人
主权项
地址

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