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发明名称	VALVE FOR PULVERULENT MATERIAL
摘要
申请公布号	SU1291163(A1)	申请公布日期	1987.02.23
申请号	SU19853925522	申请日期	1985.07.10
申请人	BEREZYUK IVAN A,SU	发明人	BEREZYUK IVAN A,SU
分类号	F16K31/02	主分类号	F16K31/02
代理机构		代理人
主权项
地址

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