Improvements in optical projection apparatus for images on strip film,申请号GB19480000121-传众专利搜索

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发明名称	Improvements in optical projection apparatus for images on strip film
摘要
申请公布号	GB649787(A)	申请公布日期	1951.01.31
申请号	GB19480000121	申请日期	1948.01.02
申请人	JOSEPH ALEXANDFR CLEIFF	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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