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发明名称	PHONOGRAPH
摘要
申请公布号	CA345729(A)	申请公布日期	1934.10.30
申请号	CAD345729	申请日期
申请人	THE UNITED RESEARCH CORPORATION	发明人	MARTIN NYSTROM
分类号		主分类号
代理机构		代理人
主权项
地址

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