SPEEKER,申请号JP19750067234-传众专利搜索

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法人/股东/高管

发明名称	SPEEKER
摘要	PURPOSE:To improve frequency characteristics by adding a mass to a nodal circle oscillating portion measured by polalography in an oscillation of a cone paper.
申请公布号	JPS51143317(A)	申请公布日期	1976.12.09
申请号	JP19750067234	申请日期	1975.06.03
申请人	SANYO ELECTRIC CO	发明人	SUGAYA SHIYOUJI;ISHII YASUHIRO;HIROSE SHINTAROU
分类号	H04R7/12;H04R7/26	主分类号	H04R7/12
代理机构		代理人
主权项
地址

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