Improvements in optical observation instruments,申请号GB19300037230-传众专利搜索

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发明名称	Improvements in optical observation instruments
摘要
申请公布号	GB361650(A)	申请公布日期	1931.11.26
申请号	GB19300037230	申请日期	1930.12.10
申请人	BARR AND STROUD, LIMITED;JAMES WEIR FRENCH	发明人
分类号	G02B5/04	主分类号	G02B5/04
代理机构		代理人
主权项
地址

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