Speech prosthesis,申请号US19850785259-传众专利搜索

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法人/股东/高管

发明名称	Speech prosthesis
摘要	In a speech prosthesis, a direct radiator speaker, a rubber membrane over a speaker for sealing against liquid and food, and an O-ring seal for a battery compartment.
申请公布号	US4706292(A)	申请公布日期	1987.11.10
申请号	US19850785259	申请日期	1985.10.07
申请人	RESNICK, JOSEPH A.	发明人	TORGESON, W. LEE
分类号	A61F2/20;A61F5/58;(IPC1-7):A61F1/20	主分类号	A61F2/20
代理机构		代理人
主权项
地址

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