Improvements relating to the focussing of television cameras,申请号GB19490004582-传众专利搜索

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发明名称	Improvements relating to the focussing of television cameras
摘要
申请公布号	GB719451(A)	申请公布日期	1954.12.01
申请号	GB19490004582	申请日期	1949.02.19
申请人	ELECTRIC & MUSICAL INDUSTRIES LIMITED	发明人	HOUCHIN JOHN PHILIP WYNN
分类号	H04N5/232	主分类号	H04N5/232
代理机构		代理人
主权项
地址

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