Molded chassis for hearing aid apparatus,申请号US19450636459-传众专利搜索

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发明名称	Molded chassis for hearing aid apparatus
摘要
申请公布号	US2500301(A)	申请公布日期	1950.03.14
申请号	US19450636459	申请日期	1945.12.21
申请人	PARAVOX, INC.	发明人	TRESISE RALEIGH E.;KENDALL PAUL D.
分类号	H04R25/04	主分类号	H04R25/04
代理机构		代理人
主权项
地址

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