Production of porous vitreous articles,申请号US19440556215-传众专利搜索

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发明名称	Production of porous vitreous articles
摘要
申请公布号	US2518997(A)	申请公布日期	1950.08.15
申请号	US19440556215	申请日期	1944.09.28
申请人	POWERS MILTON A	发明人	POWERS MILTON A.
分类号	D04H1/54	主分类号	D04H1/54
代理机构		代理人
主权项
地址

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