Time controlled mechanism for coin controlled automatic phonographs,申请号US19370179660-传众专利搜索

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发明名称	Time controlled mechanism for coin controlled automatic phonographs
摘要
申请公布号	US2190026(A)	申请公布日期	1940.02.13
申请号	US19370179660	申请日期	1937.12.14
申请人	ROBERT JACOBSON	发明人	JACOBSON ROBERT
分类号	G07F17/30	主分类号	G07F17/30
代理机构		代理人
主权项
地址

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