PHONOGRAPH,申请号CAD396544-传众专利搜索

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发明名称	PHONOGRAPH
摘要
申请公布号	CA396544(A)	申请公布日期	1941.05.13
申请号	CAD396544	申请日期
申请人	ROCK-OLA MANUFACTURING CORPORATION	发明人	PAUL H. SMYTH, JR.
分类号		主分类号
代理机构		代理人
主权项
地址

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