Article of vitreous quartz and process for producing and working it,申请号US19370180408-传众专利搜索

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发明名称	Article of vitreous quartz and process for producing and working it
摘要
申请公布号	US2270718(A)	申请公布日期	1942.01.20
申请号	US19370180408	申请日期	1937.12.17
申请人	FRANZ SKAUPY;GUSTAV WEISSENBERG	发明人	SKAUPY FRANZ;WEISSENBERG GUSTAV
分类号	C04B35/14	主分类号	C04B35/14
代理机构		代理人
主权项
地址

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