System for testing hearing,申请号US19460712551-传众专利搜索

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法人/股东/高管

发明名称	System for testing hearing
摘要
申请公布号	US2533667(A)	申请公布日期	1950.12.12
申请号	US19460712551	申请日期	1946.11.27
申请人	HARRISON BERTRAM M	发明人	HARRISON BERTRAM M.
分类号	A61B5/12	主分类号	A61B5/12
代理机构		代理人
主权项
地址

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