Contact device for electric master clocks,申请号US19350056457-传众专利搜索

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发明名称	Contact device for electric master clocks
摘要
申请公布号	US2117507(A)	申请公布日期	1938.05.17
申请号	US19350056457	申请日期	1935.12.28
申请人	FERDINAND SCHNEIDER	发明人	SCHNEIDER FERDINAND
分类号	G04C13/06	主分类号	G04C13/06
代理机构		代理人
主权项
地址

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