Time period annunciator,申请号US19350010313-传众专利搜索

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发明名称	Time period annunciator
摘要
申请公布号	US2042875(A)	申请公布日期	1936.06.02
申请号	US19350010313	申请日期	1935.03.09
申请人	ANDERSON TYSON V	发明人	ANDERSON TYSON V.
分类号	G04C21/30;G04C23/22	主分类号	G04C21/30
代理机构		代理人
主权项
地址

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