HOLD-DOWN DEVICE FOR DUST-RECEIVING CAPS,申请号SU19782612317-传众专利搜索

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发明名称	HOLD-DOWN DEVICE FOR DUST-RECEIVING CAPS
摘要
申请公布号	SU812916(A1)	申请公布日期	1981.03.15
申请号	SU19782612317	申请日期	1978.05.05
申请人	TSNI PK I PROFILAKTIKI PNEVMOKONIOZOV TEKHNIKI BEZOPASNOSTI	发明人	CHIZHKOV EGOR N,SU;SMOLYSH ARNOLD N,SU;BOLOTOV ANATOLIJ M,SU;SHANGIN NIKOLAJ F,SU;ALESHINA LYUBOV V,SU
分类号	E21B21/015;(IPC1-7):E21C7/00	主分类号	E21B21/015
代理机构		代理人
主权项
地址

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