Improvements in show-cards and the like,申请号GB19300011503-传众专利搜索

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发明名称	Improvements in show-cards and the like
摘要
申请公布号	GB349717(A)	申请公布日期	1931.06.04
申请号	GB19300011503	申请日期	1930.04.11
申请人	WILLIAM W. CLELAND LIMITED;REGINALD CHARLES LUCE	发明人
分类号	G09F1/04	主分类号	G09F1/04
代理机构		代理人
主权项
地址

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