Improvements in sundials,申请号GB19350009142-传众专利搜索

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发明名称	Improvements in sundials
摘要
申请公布号	GB450989(A)	申请公布日期	1936.07.28
申请号	GB19350009142	申请日期	1935.03.23
申请人	EDWIN WEEKS BARKER;FRANCIS BARKER & SON (1932) LIMITED	发明人
分类号	G04B49/00	主分类号	G04B49/00
代理机构		代理人
主权项
地址

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