Coin collector electromagnet,申请号US19350029436-传众专利搜索

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发明名称	Coin collector electromagnet
摘要
申请公布号	US2116580(A)	申请公布日期	1938.05.10
申请号	US19350029436	申请日期	1935.07.02
申请人	BELL TELEPHONE LABORATORIES, INCORPORATED	发明人	MELICK JOHN M.
分类号	H04M17/02	主分类号	H04M17/02
代理机构		代理人
主权项
地址

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