A new or improved date indicator,申请号GB19390011446-传众专利搜索

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发明名称	A new or improved date indicator
摘要
申请公布号	GB527571(A)	申请公布日期	1940.10.11
申请号	GB19390011446	申请日期	1939.04.15
申请人	H. PERKINS & SONS, LIMITED;ERIC WILLIAM SHAXSON LANG	发明人
分类号	G09D3/06	主分类号	G09D3/06
代理机构		代理人
主权项
地址

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