ACOUSTIC REFLECTING BOARD DEVICE,申请号JP19970079626-传众专利搜索

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发明名称	ACOUSTIC REFLECTING BOARD DEVICE
摘要
申请公布号	JPH10272266(A)	申请公布日期	1998.10.13
申请号	JP19970079626	申请日期	1997.03.31
申请人	MITSUBISHI HEAVY IND LTD	发明人	ARITA MASAHIRO
分类号	A63J5/04;E04B1/99;G10K15/00;(IPC1-7):A63J5/04	主分类号	A63J5/04
代理机构		代理人
主权项
地址

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