Атмосферный клапан для свечей доменной печи,申请号SU19320104321-传众专利搜索

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发明名称	Атмосферный клапан для свечей доменной печи
摘要
申请公布号	SU33981(A1)	申请公布日期	1934.01.31
申请号	SU19320104321	申请日期	1932.02.27
申请人	ZAJTSEV P.D.	发明人	ZAJTSEV P.D.
分类号	C21B7/18	主分类号	C21B7/18
代理机构		代理人
主权项
地址

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