SEALED BEARING OF ROLLER BIT,申请号SU19904889370-传众专利搜索

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发明名称	SEALED BEARING OF ROLLER BIT
摘要
申请公布号	RU2019670(C1)	申请公布日期	1994.09.15
申请号	SU19904889370	申请日期	1990.12.10
申请人	SPETSIALNOE KONSTRUKTORSKOE BYURO PO DOLOTAM SAMARSKOGO DOLOTNOGO ZAVODA	发明人	BOGOMOLOV RODION M;MOKROUSOV VYACHESLAV P;TORGASHOV ALEKSANDR V;STEKLYANOV BORIS L
分类号	E21B10/25;E21B10/22;(IPC1-7):E21B10/22	主分类号	E21B10/25
代理机构		代理人
主权项
地址

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