METHOD AND DEVICE FOR MEASURING SOUND ABSORPTION RATE,申请号JP19900078394-传众专利搜索

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发明名称	METHOD AND DEVICE FOR MEASURING SOUND ABSORPTION RATE
摘要
申请公布号	JPH03276031(A)	申请公布日期	1991.12.06
申请号	JP19900078394	申请日期	1990.03.27
申请人	YAMAHA CORP	发明人	KAWAKAMI FUKUJI;SAKAI TAKESHI
分类号	G01H7/00	主分类号	G01H7/00
代理机构		代理人
主权项
地址

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