Method and means for changing phonograph records,申请号US19280318447-传众专利搜索

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发明名称	Method and means for changing phonograph records
摘要
申请公布号	US1991005(A)	申请公布日期	1935.02.12
申请号	US19280318447	申请日期	1928.11.10
申请人	BELMONT WHITMAN RAY	发明人	WHITMAN RAY BELMONT
分类号	G11B17/16	主分类号	G11B17/16
代理机构		代理人
主权项
地址

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