Improvements in or relating to photographic timing devices,申请号GB19500004879-传众专利搜索

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发明名称	Improvements in or relating to photographic timing devices
摘要
申请公布号	GB672374(A)	申请公布日期	1952.05.21
申请号	GB19500004879	申请日期	1950.02.24
申请人	J.D.C. ENGINEERING LIMITED;ALEC COOPER	发明人
分类号	G03B15/00	主分类号	G03B15/00
代理机构		代理人
主权项
地址

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