Improvement in glass-to-metal seals,申请号GB19470019676D-传众专利搜索

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发明名称	Improvement in glass-to-metal seals
摘要
申请公布号	GB629387(A)	申请公布日期	1949.09.19
申请号	GB19470019676D	申请日期	1947.07.22
申请人	SYLVANIA ELECTRIC PRODUCTS INC.	发明人
分类号	C03C27/04	主分类号	C03C27/04
代理机构		代理人
主权项
地址

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