Portable string of sound producing devices,申请号US19480034676-传众专利搜索

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发明名称	Portable string of sound producing devices
摘要
申请公布号	US2470047(A)	申请公布日期	1949.05.10
申请号	US19480034676	申请日期	1948.06.23
申请人	NICORVO EDWIN J	发明人	NICORVO EDWIN J.
分类号	G10K1/064	主分类号	G10K1/064
代理机构		代理人
主权项
地址

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