Method of making alpha voice coil,申请号US19320617526-传众专利搜索

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发明名称	Method of making alpha voice coil
摘要
申请公布号	US1956826(A)	申请公布日期	1934.05.01
申请号	US19320617526	申请日期	1932.06.16
申请人	THE ROLA COMPANY	发明人	ENGHOLM BERNARD A.
分类号	H04R9/04	主分类号	H04R9/04
代理机构		代理人
主权项
地址

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