Automatic station indicator,申请号US19380217868-传众专利搜索

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发明名称	Automatic station indicator
摘要
申请公布号	US2171857(A)	申请公布日期	1939.09.05
申请号	US19380217868	申请日期	1938.07.07
申请人	ELECTRIC SERVICE SUPPLIES COMPANY	发明人	MAGEOCH HARRY YALE
分类号	G09F11/29	主分类号	G09F11/29
代理机构		代理人
主权项
地址

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