Star and time finder,申请号US19330677590-传众专利搜索

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发明名称	Star and time finder
摘要
申请公布号	US2006075(A)	申请公布日期	1935.06.25
申请号	US19330677590	申请日期	1933.06.26
申请人	LOFGREN BENJAMIN F	发明人	LOFGREN BENJAMIN F.
分类号	G09B27/04	主分类号	G09B27/04
代理机构		代理人
主权项
地址

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