Improvements in optical glasses,申请号GB19310029940-传众专利搜索

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发明名称	Improvements in optical glasses
摘要
申请公布号	GB388118(A)	申请公布日期	1933.02.23
申请号	GB19310029940	申请日期	1931.10.29
申请人	JENAER GLASWERK SCHOTT & GEN.	发明人
分类号	C03C3/074	主分类号	C03C3/074
代理机构		代理人
主权项
地址

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