Improvements in photographic printing apparatus,申请号GB19300010265-传众专利搜索

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发明名称	Improvements in photographic printing apparatus
摘要
申请公布号	GB351111(A)	申请公布日期	1931.06.25
申请号	GB19300010265	申请日期	1930.04.01
申请人	FRANK BEAUMONT;LESLIE GEORGE CHATTERLEY	发明人
分类号	G03B27/02	主分类号	G03B27/02
代理机构		代理人
主权项
地址

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