Refractory piece permeable to gases,申请号US19840619536-传众专利搜索

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发明名称	Refractory piece permeable to gases
摘要
申请公布号	USRE32192(E)	申请公布日期	1986.06.24
申请号	US19840619536	申请日期	1984.06.11
申请人		发明人
分类号	C21C7/072;B22D1/00;B32B18/00;C21C5/34;C21C5/35;C21C5/48	主分类号	C21C7/072
代理机构		代理人
主权项
地址

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