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发明名称	SOUND ABSORPTION DEVICE
摘要
申请公布号	JPH10282965(A)	申请公布日期	1998.10.23
申请号	JP19970102552	申请日期	1997.04.04
申请人	KOMATSU LTD;KOMATSU ENII:KK	发明人	IWAZAWA YASUJI
分类号	E04B1/86;F02B77/13;G10K11/172;H04R1/28;(IPC1-7):G10K11/172	主分类号	E04B1/86
代理机构		代理人
主权项
地址

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