Improvements relating to film carriers for optical projectors,申请号GB19490023435-传众专利搜索

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发明名称	Improvements relating to film carriers for optical projectors
摘要
申请公布号	GB681262(A)	申请公布日期	1952.10.22
申请号	GB19490023435	申请日期	1949.09.09
申请人	THE PULLIN OPTICAL COMPANY LIMITED;WILHELM JAKOB BAUMCARTNER	发明人
分类号	G03B23/12	主分类号	G03B23/12
代理机构		代理人
主权项
地址

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