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发明名称	SOUND ATTENUATION
摘要
申请公布号	CA649435(A)	申请公布日期	1962.10.02
申请号	CAD649435	申请日期
申请人	GEORGE WOHLBERG	发明人	GEORGE WOHLBERG
分类号		主分类号
代理机构		代理人
主权项
地址

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